subject:(Thin layer)

University of Texas – Austin

1. -5717-0719. Atomic layer deposition of functional materials.

Degree: PhD, Chemical Engineering, 2015, University of Texas – Austin

► Atomic layer deposition (ALD) has emerged as an important technique for depositing thin films in both scientific research and industrial applications. The goal of this… (more)

▼ Atomic layer deposition (ALD) has emerged as an important technique for depositing thin films in both scientific research and industrial applications. The goal of this work is to integrate functional materials using ALD including high-κ dielectric, LaAlO₃, ferroelectric BaTiO₃, photocatalytic CoO, and room temperature ferromagnetic thin films of Co metal for spin-transfer torque random-access memory applications. The work is also to demonstrate the formation of a quasi-two-dimensional electron gas (2-DEG) at the γ-Al₂O₃/SrTiO₃ heterointerface enabling a method for all-oxide device manufacturing using ALD. High permittivity oxide thin films are needed to replace SiO₂ in complementary metal oxide semiconductor (CMOS) transistors. The replacement of SiO₂ by hafnium oxide-based high-κ materials in CMOS devices in 2007 was a revolutionary development in semiconductor front end of line. The continued device feature shrinking requires higher-κ dielectrics, compared to HfO₂-based materials. Crystalline perovskite oxides, such as SrTiO₃, LaAlO₃, and BaTiO₃, etc. have from high to very high dielectric constant and being proposed to replace HfO₂-based materials in CMOS devices if the leakage problem is resolved. The work explores the monolithic integration of crystalline perovskite oxide films with Si(001) using combined molecular beam epitaxy (MBE) and ALD techniques. Four unit cells of SrTiO₃ were grown directly on Si(001) by MBE and transferred in-situ into the ALD chamber for further depositions. The integration of oxide thin films on Si(001) using the MBE-ALD technique allows us to maintain clean oxide/Si(001) interfaces since low temperatures (180–250 °C) were maintained during the ALD deposition. The goal of my work is also to explore processes to enable area selective deposition of cobalt (II) oxide, CoO. The effectiveness of poly(trimethylsilylstyrene) in selectively inhibiting surface nucleation of CoO on SiO₂ and MgO substrates is demonstrated. Carbon-free cobalt thin films are formed by reducing CoO using Al and Sr metals to scavenge oxygen from CoO. The work explores the ability to control the structure and morphology of the resultant cobalt film by tuning the reduction conditions, allowing us to tune magnetic properties of the cobalt thin film. My work also focuses on the growth of γ-Al₂O₃ on the TiO₂-terminated SrTiO₃ substrate at temperatures higher than 300 °C. The formation of a quasi-2-DEG is found at the γ-Al₂O₃/TiO₂-terminated SrTiO₃ interface. In-situ x-ray photoelectron spectroscopy reveals the presence of Ti³⁺ feature at the heterointerface. Conductivity at the interface was found to be proportional to the amount of Ti³⁺ species. Oxide quasi-2-DEG might provide opportunities for new generations of all-oxide electronic devices using ALD. Advisors/Committee Members: Ekerdt, John G. (advisor), Demkov, Alexander A. (committee member), Hwang, Gyeong S. (committee member), Ellison, Christopher J. (committee member), Korgel, Brian A. (committee member).

Subjects/Keywords: Atomic layer deposition; Thin films

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APA (6^th Edition):

-5717-0719. (2015). Atomic layer deposition of functional materials. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/30485

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-5717-0719. “Atomic layer deposition of functional materials.” 2015. Doctoral Dissertation, University of Texas – Austin. Accessed March 08, 2021. http://hdl.handle.net/2152/30485.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-5717-0719. “Atomic layer deposition of functional materials.” 2015. Web. 08 Mar 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-5717-0719. Atomic layer deposition of functional materials. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2015. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2152/30485.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-5717-0719. Atomic layer deposition of functional materials. [Doctoral Dissertation]. University of Texas – Austin; 2015. Available from: http://hdl.handle.net/2152/30485

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Ryerson University

2. Samrgandi, Wagday Mohammed. Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds.

Degree: 2013, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A2343

► It might be industrially or bio-medically important to confirm and monitor the hydroxylation of phenolic amine substrates via mass spectrometry. Phenolic amines may be assayed… (more)

▼ It might be industrially or bio-medically important to confirm and monitor the hydroxylation of phenolic amine substrates via mass spectrometry. Phenolic amines may be assayed by colorimetric reactions, liquid chromatography (LC) or thin layer chromatography (TLC), spectrophotometry (UV VIS) or other methods that may not confirm the product molecule with reasonable specificity. Phenolic amine compounds may easily enter the gas phase by electrospray ionization (ESI) and the compounds parent and subsequent fragment ions examined by tandem mass spectrometry (MS/MS). Thus a number of phenolic amine or other reaction products might be monitored and confirmed by liquid chromatography with electrospray ionization and tandem mass spectrometry (LC-ESI-MS/MS). L-tyrosine was reacted with dihydroxyfumaric acid (DHFA) at 0 °C in the presence of bubbling O2 in 400 mL flask respectively or ≥ 100 μL volume in a 96 well plate in an oxygen atmosphere resulting in the product L-DOPA (L-3,4 dihydroxyphenylalanine). The production of L-DOPA was examined with nitrite-molybdate in 0.5 M HCl followed the addition of 1 M of NaOH to form a red color quantified by absorbance at 510 nm. Thin layer chromatography with staining for amines by ninhydrin was used to detect the production of LDOPA. LC-ESI-MS/MS confirmed the molecular identity of the L-DOPA product with a parent ion predominately observed at an m/z value of 198 [M+1H] and the major fragment ions at 181m/z and 151m/z. Monitoring the 181 m/z fragment ion permitted the quantification of L-DOPA over time to ≤1 pM in the reaction vessel with respect to external standards. The hydroxylation of tyrosine was observed to require O2 and DHFA and produced a strong yield at pH 2 but was not dependent on Horseradish peroxidase (HRP) and proceeded in the presence of EDTA. The hydroxylation reaction of tyrosine was depending on DHFA, oxygen and acid (DOA).We conclude that DOA hydroxylation by LC-ESI-MS/MS may be directly applicable to monitoring the industrial modification of a wide class of phenolic amines. Advisors/Committee Members: Ryerson University (Degree grantor), Ryerson University (Degree grantor).

Subjects/Keywords: Phenols; Hydroxylation; Thin layer chromatography; Biochemistry

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APA (6^th Edition):

Samrgandi, W. M. (2013). Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A2343

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Samrgandi, Wagday Mohammed. “Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds.” 2013. Thesis, Ryerson University. Accessed March 08, 2021. https://digital.library.ryerson.ca/islandora/object/RULA%3A2343.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Samrgandi, Wagday Mohammed. “Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds.” 2013. Web. 08 Mar 2021.

Vancouver:

Samrgandi WM. Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds. [Internet] [Thesis]. Ryerson University; 2013. [cited 2021 Mar 08]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A2343.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Samrgandi WM. Monitoring the Chemical Hydroxylation of Complex Phenolic Compounds. [Thesis]. Ryerson University; 2013. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A2343

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

3. Foroughi Abari, Ali. Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates.

Degree: PhD, Department of Chemical and Materials Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/zw12z615t

► Atomic layer deposition (ALD) is a powerful ultra-thin film deposition technique that uses sequential self-limiting surface reactions to provide conformal atomic scale film growth. Deposition… (more)

▼ Atomic layer deposition (ALD) is a powerful ultra-thin film deposition technique that uses sequential self-limiting surface reactions to provide conformal atomic scale film growth. Deposition of ALD films on many substrate systems has been studied before; however, limited data is available on deposition on metallic surfaces. The investigation of the growth of Al2O3, HfO2, and ZrO2 as three technologically important metal oxides on metallic substrates is the subject of this thesis. Al2O3, HfO2, and ZrO2 films were grown by ALD on silicon, as a well-studied substrate, in different operating conditions to investigate the effect of process parameters on film properties. To study the growth of oxides on metals, thin metallic substrates were prepared by sputter deposition on silicon wafers and then were transferred to the ALD chamber where the film growth was monitored by in-situ spectroscopic ellipsometry. The transfer was performed via a load lock system without breaking the vacuum to preserve the pristine metal surface. Formation of a thin interfacial layer of metal oxide was observed during the initial moments of plasma enhanced ALD, that was due to the exposure of metal surface to oxygen plasma. In-situ spectroscopic ellipsometry was used to accurately measure the thickness change of the growing films including the interfacial layer. The thickness of this interfacial oxide layer depended on various process parameters including deposition temperature, order of precursors and plasma pulse length. The interfacial oxide layer was absent during the conventional thermal ALD. However, thermal ALD of oxides on metals exhibited substrate-inhibited growth, especially at higher deposition temperatures. With the knowledge of ALD growth characteristics on metals, metal-insulator-metal (MIM) devices were fabricated by both thermal and plasma enhanced ALD and electrically characterized. The presence of the interfacial oxide layer altered the device performance by changing the capacitance and current characteristics. Employing this approach, it was shown that ALD can be successfully used in the fabrication process of MIM devices and similar systems where ultra-thin insulating layers need to be uniformly deposited on a metallic surface.

Subjects/Keywords: Ellipsometry; Atomic Layer Deposition; Thin Film

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APA (6^th Edition):

Foroughi Abari, A. (2012). Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/zw12z615t

Chicago Manual of Style (16^th Edition):

Foroughi Abari, Ali. “Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates.” 2012. Doctoral Dissertation, University of Alberta. Accessed March 08, 2021. https://era.library.ualberta.ca/files/zw12z615t.

MLA Handbook (7^th Edition):

Foroughi Abari, Ali. “Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates.” 2012. Web. 08 Mar 2021.

Vancouver:

Foroughi Abari A. Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates. [Internet] [Doctoral dissertation]. University of Alberta; 2012. [cited 2021 Mar 08]. Available from: https://era.library.ualberta.ca/files/zw12z615t.

Council of Science Editors:

Foroughi Abari A. Atomic Layer Deposition of Metal Oxide Thin Films on Metallic Substrates. [Doctoral Dissertation]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/zw12z615t

Georgia Tech

4. Skipper, Anna. Behavior response of an alpine lake copepod to thin layer structure.

Degree: MS, Civil and Environmental Engineering, 2016, Georgia Tech

URL: http://hdl.handle.net/1853/56280

► The objective of this study is to determine for the alpine copepod Hesperodiaptomus shoshone whether a) the species responds to hydromechanical cues in a manner… (more)

Subjects/Keywords: Hesperodiaptomus shoshone; Thin layer; Alpine lake

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APA (6^th Edition):

Skipper, A. (2016). Behavior response of an alpine lake copepod to thin layer structure. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/56280

Chicago Manual of Style (16^th Edition):

Skipper, Anna. “Behavior response of an alpine lake copepod to thin layer structure.” 2016. Masters Thesis, Georgia Tech. Accessed March 08, 2021. http://hdl.handle.net/1853/56280.

MLA Handbook (7^th Edition):

Skipper, Anna. “Behavior response of an alpine lake copepod to thin layer structure.” 2016. Web. 08 Mar 2021.

Vancouver:

Skipper A. Behavior response of an alpine lake copepod to thin layer structure. [Internet] [Masters thesis]. Georgia Tech; 2016. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1853/56280.

Council of Science Editors:

Skipper A. Behavior response of an alpine lake copepod to thin layer structure. [Masters Thesis]. Georgia Tech; 2016. Available from: http://hdl.handle.net/1853/56280

Delft University of Technology

5. Malek Kani, Sevda (author). Polyimide Encapsulation for Implantable Medical Devices.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:7ceb164d-875f-47e3-914b-1f0d0bb51015

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The application of implantable medical devices (IMDs) is increasing rapidly due to the many health benefits they provide in diagnosing and treating diseases. However, these… (more)

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The application of implantable medical devices (IMDs) is increasing rapidly due to the many health benefits they provide in diagnosing and treating diseases. However, these devices have to be able to survive harsh body conditions to ensure their reliability and functionality. Bodily fluids initiate chemical degradation and corrosion in the devices especially in the metal interconnects. Therefore, the devices are encapsulated by various forms of hermetic and non-hermetic packaging. The current standard hermetic packaging is not suitable for miniature microelectronics. As a result, conformal encapsulation is currently being developed. Multiple inorganic and organic layers of materials or a combination of different layers are used to achieve corrosion protection. Polyimide (PI) is a type of polymer that is used as encapsulation material in bioelectronic devices. Recently, there has been an increasing interest in using thin inorganic layers such as SiC and SiO₂ between the polyimide layers in order to improve the PI to PI adhesion. In this thesis, first, the corrosion phenomenon in bioelectronics and the available packaging methods are explained. Next, test structures that contain polyimide encapsulation with and without the SiC and SiO₂ ceramic layers are microfabricated. In order to provide accelerated aging conditions to the samples, a lifetime measurement set-up is modeled and built. Finally, the test structures are tested in the lifetime set-up to evaluate their reliability performances in accelerated aging conditions. The leakage currents of the test structures are measured as a function of the soaking time. Samples with SiC and SiO₂ thin layers exhibit a high leakage current value and fail relatively fast. In addition, samples are analyzed by electrochemical impedance spectroscopy (EIS) measurements and the samples without the ceramic layers demonstrate a capacitive behavior in lower frequencies.

BioMedical Engineering

Advisors/Committee Members: Dekker, R. (mentor), Kawasaki, S. (graduation committee), Li, J. (graduation committee), Giagka, V. (graduation committee), Mastrangeli, M. (graduation committee), French, P.J. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Encapsulation; Polyimide; Corrosion; SiC thin layer; SiO2 thin layer; ALTA; Reliability; Lifetime; EIS; Leakage Current

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APA (6^th Edition):

Malek Kani, S. (. (2020). Polyimide Encapsulation for Implantable Medical Devices. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7ceb164d-875f-47e3-914b-1f0d0bb51015

Chicago Manual of Style (16^th Edition):

Malek Kani, Sevda (author). “Polyimide Encapsulation for Implantable Medical Devices.” 2020. Masters Thesis, Delft University of Technology. Accessed March 08, 2021. http://resolver.tudelft.nl/uuid:7ceb164d-875f-47e3-914b-1f0d0bb51015.

MLA Handbook (7^th Edition):

Malek Kani, Sevda (author). “Polyimide Encapsulation for Implantable Medical Devices.” 2020. Web. 08 Mar 2021.

Vancouver:

Malek Kani S(. Polyimide Encapsulation for Implantable Medical Devices. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Mar 08]. Available from: http://resolver.tudelft.nl/uuid:7ceb164d-875f-47e3-914b-1f0d0bb51015.

Council of Science Editors:

Malek Kani S(. Polyimide Encapsulation for Implantable Medical Devices. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:7ceb164d-875f-47e3-914b-1f0d0bb51015

Rochester Institute of Technology

6. Montmayeur, Olivier. Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos.

Degree: MS, Mechanical Engineering, 2019, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/10286

► In Haiti, 80% of rural people live in dire poverty living on less than a dollar a day. Cultivated and wild grown foods such… (more)

▼ In Haiti, 80% of rural people live in dire poverty living on less than a dollar a day. Cultivated and wild grown foods such as mangos and breadfruit could be used to reduce the economic and nutritional disparity for rural communities. Unfortunately in these areas there is a high amount of spoilage due to short harvesting seasons with high yields and lack of preservation options. 80% of breadfruit and 60% of mangoes are lost annually according to a local farmer’s co-op in Borgne, Haiti [1]. Based on a 2018 three-week collaborative design session with Rochester Institute of Technology (RIT) and the local women’s group SEE FANM (women for health, education, and economy), we identified mangos as a potential option for “transfòmayson fwi” - food transformation. Our team proposed drying mangos and then selling them as a juice powder in the off-season. Food preservation by solar drying has become a widespread practice in developing countries. Dryers use solar energy and other supplementary energy sources to heat air entering a drying chamber. Drying is a complex heat and mass transfer process that can take hours or days depending on the properties of the food such as ripeness and temperature and humidity of the drying air. Many studies have attempted to model the transport of moisture within fruits to predict drying performance while others have experimented with different styles of solar dryer designs. These systems are mostly tested outside in variable ambient conditions where the local temperature, relative humidity, and solar flux constantly fluctuate introducing a significant amount of noise . This “noise” is a product of these varying external conditions which affects the quality of the drying air and the performance of solar-thermal systems. Testing thermal systems in cold climates such as Rochester makes it impossible to predict performance in tropical regions like Haiti. This work focuses on eliminating many of these external factors in order to remove noise to provide faster and more repeatable testing. A testing system was designed and built to simulate the output of a solar collector in a tropical environment to explore the impact of the collector size and dryer volumetric flowrate on drying performance in a highly consistent and controlled manner. Testing demonstrated the importance of external conditions during the falling drying rate regime, where internal diffusion typically dominates drying performance. The results of these tests are used to empirically fit a bulk drying model for a shrinking fruit film that exemplifies the impact of external conditions. This model allows for the prediction of drying performance for the first 85% of moisture removed from a fruit film. A system model is also proposed that seeks to capture the deep layer effect associated with drying multiple stacks of fruit. By fitting the thin layer and system model to experimental data, a predictive model is proposed and used to explore design choices for the unglazed transpired solar collector and horizontal drying… Advisors/Committee Members: Robert Stevens.

Subjects/Keywords: Deep layer; Mango; Mathematical modeling; Solar drying; Thin layer

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APA (6^th Edition):

Montmayeur, O. (2019). Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/10286

Chicago Manual of Style (16^th Edition):

Montmayeur, Olivier. “Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos.” 2019. Masters Thesis, Rochester Institute of Technology. Accessed March 08, 2021. https://scholarworks.rit.edu/theses/10286.

MLA Handbook (7^th Edition):

Montmayeur, Olivier. “Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos.” 2019. Web. 08 Mar 2021.

Vancouver:

Montmayeur O. Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos. [Internet] [Masters thesis]. Rochester Institute of Technology; 2019. [cited 2021 Mar 08]. Available from: https://scholarworks.rit.edu/theses/10286.

Council of Science Editors:

Montmayeur O. Testing and Modeling of the Indirect Solar Drying of Thin Film Mangos. [Masters Thesis]. Rochester Institute of Technology; 2019. Available from: https://scholarworks.rit.edu/theses/10286

San Jose State University

7. Tek, Andy Theodora. Star Polymer-Based Thin Film Materials for Biomedical Applications.

Degree: MS, Biomedical, Chemical & Materials Engineering, 2013, San Jose State University

URL: https://doi.org/10.31979/etd.a5z7-qvpa ; https://scholarworks.sjsu.edu/etd_theses/4317

► There are numerous applications of nanostructured, functional thin films, but this work focused on biomedical applications, particularly antimicrobial surface coatings and drug delivery thin… (more)

Subjects/Keywords: layer-by-layer self-assembly; star polymers; thin film

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APA (6^th Edition):

Tek, A. T. (2013). Star Polymer-Based Thin Film Materials for Biomedical Applications. (Masters Thesis). San Jose State University. Retrieved from https://doi.org/10.31979/etd.a5z7-qvpa ; https://scholarworks.sjsu.edu/etd_theses/4317

Chicago Manual of Style (16^th Edition):

Tek, Andy Theodora. “Star Polymer-Based Thin Film Materials for Biomedical Applications.” 2013. Masters Thesis, San Jose State University. Accessed March 08, 2021. https://doi.org/10.31979/etd.a5z7-qvpa ; https://scholarworks.sjsu.edu/etd_theses/4317.

MLA Handbook (7^th Edition):

Tek, Andy Theodora. “Star Polymer-Based Thin Film Materials for Biomedical Applications.” 2013. Web. 08 Mar 2021.

Vancouver:

Tek AT. Star Polymer-Based Thin Film Materials for Biomedical Applications. [Internet] [Masters thesis]. San Jose State University; 2013. [cited 2021 Mar 08]. Available from: https://doi.org/10.31979/etd.a5z7-qvpa ; https://scholarworks.sjsu.edu/etd_theses/4317.

Council of Science Editors:

Tek AT. Star Polymer-Based Thin Film Materials for Biomedical Applications. [Masters Thesis]. San Jose State University; 2013. Available from: https://doi.org/10.31979/etd.a5z7-qvpa ; https://scholarworks.sjsu.edu/etd_theses/4317

Texas A&M University

8. Priolo, Morgan Alexander. Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films.

Degree: PhD, Materials Science and Engineering, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11170

► Thin layers with high barrier to oxygen and other gases are a key component to many packaging applications, such as flexible electronics, food, and pharmaceuticals.… (more)

▼ Thin layers with high barrier to oxygen and other gases are a key component to many packaging applications, such as flexible electronics, food, and pharmaceuticals. Vapor deposited thin films provide significant gas barrier, but are prone to cracking when flexed, require special, non-ambient processing environments, and can involve complex fabrication when layered with polymers. The addition of clay into polymers can enhance barrier properties relative to the neat polymer; however, these composites are subject to clay aggregation at high loadings, which leads to increased opacity and random platelet alignment that ultimately reduce barrier improvement. Layer-by-layer (LbL) assembly is capable of producing thin films that exhibit super gas barrier properties, while remaining flexible and completely transparent. Montmorillonite (MMT) clay and branched polyethylenimine (PEI) were deposited via LbL assembly to create gas barrier films that can be tailored by altering the pH of the PEI deposition solution or the concentration of the MMT suspension. Films grow linearly as a function of layers deposited, where increasing PEI pH increases spacing between clay layers and increasing MMT concentration increases thin film clay content. An oxygen transmission rate (OTR) below the detection limit of commercial instrumentation (< 0.005 cm3/m2•day•atm) is observed after 70 layers of 0.2 wt % MMT or 24 layers of 2 wt % MMT are deposited with pH 10 PEI onto 179 µm thick poly(ethylene terephthalate) (PET) film. Three-component films of PEI, poly(acrylic acid) (PAA), and MMT grow exponentially as a function of PEI/PAA/PEI/MMT quadlayers deposited. A transparent, ultrathin film of only four quadlayers deposited onto PET exhibits the lowest oxygen permeability ever reported for any thin film material, at only 51 nm thick. Finally, the first example of LbL assembly using large aspect ratio vermiculite (VMT) clay was performed. PEI/VMT films grow linearly as a function of layers deposited and exhibit 95 % light transmission with 97 wt % VMT. The barrier of these films is due to the highly aligned nanobrick wall structure that creates a tortuous path for permeating molecules. Coupling high flexibility, transparency, and barrier, these coatings are good candidates for a variety of packaging applications. Advisors/Committee Members: Grunlan, Jaime C. (advisor), Jeong, Hae-Kwon (committee member), Ross, Jr., Joseph H. (committee member), Wang, Haiyan (committee member).

Subjects/Keywords: layer-by-layer assembly; thin films; oxygen barrier; packaging; clays; nanocomposites

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APA (6^th Edition):

Priolo, M. A. (2012). Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11170

Chicago Manual of Style (16^th Edition):

Priolo, Morgan Alexander. “Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films.” 2012. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11170.

MLA Handbook (7^th Edition):

Priolo, Morgan Alexander. “Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films.” 2012. Web. 08 Mar 2021.

Vancouver:

Priolo MA. Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films. [Internet] [Doctoral dissertation]. Texas A&M University; 2012. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11170.

Council of Science Editors:

Priolo MA. Layer-by-layer Assembly of Nanobrick Wall Ultrathin Transparent Gas Barrier Films. [Doctoral Dissertation]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-11170

9. Mauroy, Cyprien. Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials.

Degree: Docteur es, Géosciences de l'environnement, 2017, Aix Marseille Université

URL: http://www.theses.fr/2017AIXM0265

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Lors des dix dernières années, les films multicouches ont suscité l’intérêt de la communauté scientifique pour leurs propriétés innovantes. Principalement issus de l’association de polyélectrolytes… (more)

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Lors des dix dernières années, les films multicouches ont suscité l’intérêt de la communauté scientifique pour leurs propriétés innovantes. Principalement issus de l’association de polyélectrolytes et/ou de nanoparticules de différentes morphologies, ils ont ouvert la voie à la fabrication d’une nouvelle catégorie de matériaux nanoporeux, possédant des propriétés optiques attractives telles que la coloration structurale et l’antireflet. Les films multicouches à base de deux nanoparticules de charges opposées sont plus rares et permettent de jumeler les propriétés des deux nanoparticules utilisées et d’en faire émerger de nouvelles. Dans cette étude, nous nous sommes intéressés à deux nanoparticules anisotropes, de facteurs d’aspects contrôlés et respectivement bio/geosourcées : les nanocristaux de cellulose (NCC) et des nanotubes d’imogolite. Le but de cette étude est d’étudier la possibilité de créer un film multicouche bio-géo inspiré à base de ces deux nanoparticules par immersion et d’en étudier les propriétés optiques. Dans un premier temps, nous avons comparé les films multicouches NCC/Ge-imogolites à ceux plus communément décrits dans la littérature, à savoir, des films à base de NCC ou d’imogolite associés à un polyélectrolyte de charge opposée. Les différents paramètres de trempage comme le temps d’immersion et la force ionique de la suspension ont été variés afin d’obtenir une densité de film optimale. Pour finir la porosité des films et leur comportement dans l’eau ont été étudiés par QCM-D, ainsi que leurs propriétés optiques par mesure de transmittance.

In the past decade, multilayer thin films drew the scientific community attention for their unique properties. Indeed, principally made of an association of polyelectrolytes and/or nanoparticles, of various morphologies and chemistries, they allow the design of a range of porous nanomaterials with unique optical properties, such as structural colors or anti-reflectivity. Less commonly described, thin films made of two nanoparticles of opposite charges are gaining interest since they combine the properties of the two nanoparticles used, and generate new ones through their association. In this study, multilayer coatings were formed through the association of two anisotropic oppositely charged nanorods of well-controlled aspect ratio, i.e. bio-based anionic cellulose nanocrystals (CNC) and geo-based cationic Imogolites. This study deals with the feasibility to create a bio-geo-inspired multilayer thin film based on these two nanoparticles by dipping and characterize their optical properties. Firstly, elaboration of multilayered thin films from CNC and Ge-Imogolites nanorods, were studied in comparison with reference films incorporating CNC or Imogolites with polyelectrolytes bearing opposite charges of the nanorods. Multilayered thin films were assembled by the dipping procedure and various parameters (adsorption time, ionic strength, etc.) were varied to investigate the optimal density for the film. To finish, film porosities were investigated using…

Advisors/Committee Members: Rose, Jérôme (thesis director), Levard, Clément (thesis director), Cathala, Bernard (thesis director).

Subjects/Keywords: Nanomateriaux; Nanocristaux de cellulose; Imogolite; Film mince; Layer-By-Layer; Porosité; Nanomaterial; Cellulose nanocrystal; Imogolite; Thin film; Layer-By-Layer; Porosity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mauroy, C. (2017). Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials. (Doctoral Dissertation). Aix Marseille Université. Retrieved from http://www.theses.fr/2017AIXM0265

Chicago Manual of Style (16^th Edition):

Mauroy, Cyprien. “Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials.” 2017. Doctoral Dissertation, Aix Marseille Université. Accessed March 08, 2021. http://www.theses.fr/2017AIXM0265.

MLA Handbook (7^th Edition):

Mauroy, Cyprien. “Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials.” 2017. Web. 08 Mar 2021.

Vancouver:

Mauroy C. Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials. [Internet] [Doctoral dissertation]. Aix Marseille Université 2017. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2017AIXM0265.

Council of Science Editors:

Mauroy C. Films multicouches nanocristaux de cellulose/Ge-Imogolite pour l'élaboration de nouveaux matériaux nanoporeux : Elaboration of cellulose nanocrystal/Ge-imogolite multilayered thin film to design new nanoporous materials. [Doctoral Dissertation]. Aix Marseille Université 2017. Available from: http://www.theses.fr/2017AIXM0265

Texas A&M University

10. Jan, Chien Sy Jason. Layer-by-layer assembly of electrically conductive polymer thin films.

Degree: MS, Mechanical Engineering, 2007, Texas A&M University

URL: http://hdl.handle.net/1969.1/5979

► Layer-by-layer (LbL) assembly was used to produce highly conductive thin films with carbon black (CB) and polyelectrolytes. The effects of sonication and pHadjustment of the… (more)

Subjects/Keywords: Layer-by-layer; Conductive; Thin Films

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APA (6^th Edition):

Jan, C. S. J. (2007). Layer-by-layer assembly of electrically conductive polymer thin films. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/5979

Chicago Manual of Style (16^th Edition):

Jan, Chien Sy Jason. “Layer-by-layer assembly of electrically conductive polymer thin films.” 2007. Masters Thesis, Texas A&M University. Accessed March 08, 2021. http://hdl.handle.net/1969.1/5979.

MLA Handbook (7^th Edition):

Jan, Chien Sy Jason. “Layer-by-layer assembly of electrically conductive polymer thin films.” 2007. Web. 08 Mar 2021.

Vancouver:

Jan CSJ. Layer-by-layer assembly of electrically conductive polymer thin films. [Internet] [Masters thesis]. Texas A&M University; 2007. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1969.1/5979.

Council of Science Editors:

Jan CSJ. Layer-by-layer assembly of electrically conductive polymer thin films. [Masters Thesis]. Texas A&M University; 2007. Available from: http://hdl.handle.net/1969.1/5979

Texas A&M University

11. O'Neal, Joshua Taylor. Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites.

Degree: PhD, Materials Science and Engineering, 2018, Texas A&M University

URL: http://hdl.handle.net/1969.1/173420

► This thesis presents three investigations into the responsive physical and thermal properties of polyelectrolyte layer-by-layer assemblies. The first study focuses on hydrogen bonded, layer-by-layer assembled… (more)

▼ This thesis presents three investigations into the responsive physical and thermal properties of polyelectrolyte layer-by-layer assemblies. The first study focuses on hydrogen bonded, layer-by-layer assembled films and nanocomposites Polyelectrolyte multilayers and layer-by-layer assemblies are susceptible to structural changes in response to changes in the post-assembly environment. The study demonstrates the first reported use of spray-assisted layer-by-layer assembly to produce hydrogen-bonding polymer nanocomposites of poly(ethylene oxide) (PEO) and poly(methacrylic acid) (PMAA) containing discrete regions of gold nanoparticles (AuNPs) vertically positioned throughout the film structure with no substantial aggregation. Elevating the environmental pH disrupts the hydrogen bonding network, resulting in release of the AuNPs, and the rate of release is shown to depend on the pH of the environment. The second study deals with the swelling response of electrostatic layer-by-layer thin films to changes in ionic environment. The effects of a wide range of KBr concentrations (0 to 1.6 M) on the swelling and deswelling of LbL assemblies formed from poly(diallyldimethylammonium) polycation (PDADMA) and poly(styrenesulfonate) polyanion (PSS) in 0.5 M NaCl were investigated using quartz-crystal microbalance with dissipation (QCM-D) monitoring. The swelling behavior is compared with responses to KCl, NaBr, and NaCl at various concentrations. The results demonstrate anion type dominates swelling response, and that Br- ions have a much greater effect on the structure of as-prepared thin films than Cl- at ionic strengths above assembly conditions, likely due to the chaotropic nature of Br^-. Four response regimes are identified that delineate swelling due to electrostatic repulsion, slight contraction, swelling due to doping, and film destruction as ionic strength increases. The third study focuses on the thermal response of electrostatic layer-by-layer assemblies of PDADMA and PSS to changes in hydration level and counterion type. Modulated differential scanning calorimetry (MDSC) is employed to quantify the influence of changing hydration level, ionic strength and type, as well as assembly conditions on the glass transition temperature (Tg) of free-standing PDADMA/PSS LbL films assembled in 0.5 M NaCl. The results indicate that assembly conditions and post-assembly hydration level are the primary factor in determining the Tg of PDADMA/PSS LbL films when hydration is limited to less than 35 wt%. Hydrating with KBr solutions resulted in no apparent effect on the Tg of the LbL films. Conversely, films assembled in NaCl and KBr at identical ionic strengths show a nearly 20°C difference in Tg, indicating a different internal structure of extrinsic and intrinsic ion pairing. Finally, PDADMA/PSS LbL films show remarkably similar Tg behavior to PDADMA/PSS complexes when hydrated to similar levels. Advisors/Committee Members: Lutkenhaus, Jodie L (advisor), Grunlan, Jaime (committee member), Sukhishvili, Svetlana (committee member), Elabd, Yossef (committee member).

Subjects/Keywords: layer-by-layer assembly; responsive; nanocomposites; thin films; swelling; glass transition temperature; monovalent counterions

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APA (6^th Edition):

O'Neal, J. T. (2018). Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/173420

Chicago Manual of Style (16^th Edition):

O'Neal, Joshua Taylor. “Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites.” 2018. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021. http://hdl.handle.net/1969.1/173420.

MLA Handbook (7^th Edition):

O'Neal, Joshua Taylor. “Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites.” 2018. Web. 08 Mar 2021.

Vancouver:

O'Neal JT. Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites. [Internet] [Doctoral dissertation]. Texas A&M University; 2018. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1969.1/173420.

Council of Science Editors:

O'Neal JT. Layer-by-Layer Assembly of Responsive Polyelectrolyte Thin Films and Nanocomposites. [Doctoral Dissertation]. Texas A&M University; 2018. Available from: http://hdl.handle.net/1969.1/173420

North Carolina State University

12. Peng, Qing. Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition.

Degree: PhD, Chemical Engineering, 2009, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/3550

► With the development of material science and technology, modification of substrates, which have random geometry and high aspect ratio three dimensional (3D) complex structures, with… (more)

▼ With the development of material science and technology, modification of substrates, which have random geometry and high aspect ratio three dimensional (3D) complex structures, with desired functional, reactive and stable coatings becomes important and challenging. The ability to fabricate mono- or multi-layers of functional materials with precisely controlled dimensions, finely tuned composition and molecular structures, attracts significant interests in materials science and is the key to construct such devices and structures at nano- and micro- scale with desired properties. In this study, supercritical carbon dioxide (scCO2) has been studied as an alternative route for modifying substrates due to the unique gas-like (low viscosity, high diffusivity and zero surface tension) and liquid-like properties (high density). 1) The reaction kinetics of metal oxides thin film deposition from pyrolysis of metal organics in scCO2 was studied in detail. This method was demonstrated as a powerful technique to coat oxides, including Al2O3, Ga2O3 and others, into 3D high aspect ratio complex structure of carbon nanotubes (CNTs) forest. 2) The low temperature scCO2 based hydrogenolysis process was developed as a useful way to functionalize aligned CNTs forest with dense Nickel nanoparticles. On the second part of this work, atomic layer deposition (ALD) /molecular layer deposition (MLD), as a vapor phase, stepwise and self-limiting vacuum based deposition process, was demonstrated as a powerful way to form highly conformal and uniform film onto substrates, even into highly complex 3D complex structures. In this study, 4) Metal oxide ALD is applied onto 3D electrospun polymer microfiber mats template to illustrate an effective and robust strategy to fabricate long and uniform metal oxide microtubes with precisely controllable wall thickness. Designer tubes of various sizes and different materials were demonstrated by using this method. 5) By further extending this technique, complex coaxial Al2O3/ZnO/Al2O3 multilayed microtubular structure is fabricated, which provides an unique platform to study the solid state reaction and diffusion process (Kirkendall Effect) between Al2O3 shells and the confined middle ZnO layers by annealing the samples at 700 Ã‹Å¡C. 6) The extension of ALD-MLD process of polyamides, zinc hybrid, aminosilane self assembly monolayers were studied by various techniques to illustrate the surface reaction mechanism. Advisors/Committee Members: Gregory N. Parsons, Committee Chair (advisor), Jan Genzer, Committee Member (advisor), Ruben G. Carbonell, Committee Member (advisor), Saad A. Khan, Committee Member (advisor).

Subjects/Keywords: supercritical carbon dioxide; thin film; atomic layer deposition; molecular layer deposition; three dimensional; complex structure

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APA (6^th Edition):

Peng, Q. (2009). Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/3550

Chicago Manual of Style (16^th Edition):

Peng, Qing. “Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition.” 2009. Doctoral Dissertation, North Carolina State University. Accessed March 08, 2021. http://www.lib.ncsu.edu/resolver/1840.16/3550.

MLA Handbook (7^th Edition):

Peng, Qing. “Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition.” 2009. Web. 08 Mar 2021.

Vancouver:

Peng Q. Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition. [Internet] [Doctoral dissertation]. North Carolina State University; 2009. [cited 2021 Mar 08]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3550.

Council of Science Editors:

Peng Q. Nanoscale Engineering Materials with Supercritical Fluid and Atomic Layer Deposition. [Doctoral Dissertation]. North Carolina State University; 2009. Available from: http://www.lib.ncsu.edu/resolver/1840.16/3550

Université Catholique de Louvain

13. vander Straeten, Aurélien. Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins.

Degree: 2019, Université Catholique de Louvain

URL: http://hdl.handle.net/2078.1/218057

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The immobilization of proteins to impart specific functions to surfaces is topical for chemical engineering, healthcare and diagnosis. Layer-by-Layer (LbL) self-assembly is one of the… (more)

Subjects/Keywords: Thin film; Lysozyme; Bioactivity; Protein−polyelectrolyte complexes; LL37; Self-assembly; Layer-by-layer

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APA (6^th Edition):

vander Straeten, A. (2019). Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/218057

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

vander Straeten, Aurélien. “Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins.” 2019. Thesis, Université Catholique de Louvain. Accessed March 08, 2021. http://hdl.handle.net/2078.1/218057.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

vander Straeten, Aurélien. “Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins.” 2019. Web. 08 Mar 2021.

Vancouver:

vander Straeten A. Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins. [Internet] [Thesis]. Université Catholique de Louvain; 2019. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2078.1/218057.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

vander Straeten A. Protein-polyelectrolyte complexes for the surface immobilization of bioactive proteins. [Thesis]. Université Catholique de Louvain; 2019. Available from: http://hdl.handle.net/2078.1/218057

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Colorado

14. Wallas, Jasmine Melissa. Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries.

Degree: PhD, 2019, University of Colorado

URL: https://scholar.colorado.edu/chemistry_gradetds/4

► Atomic layer deposition (ALD) is a technique to deposit thin films with great precision. Molecular layer deposition (MLD), developed as an analog of ALD, is… (more)

Subjects/Keywords: atomic layer deposition; energy storage; moleculary layer deposition; thin films; Chemistry; Materials Chemistry

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APA (6^th Edition):

Wallas, J. M. (2019). Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/chemistry_gradetds/4

Chicago Manual of Style (16^th Edition):

Wallas, Jasmine Melissa. “Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries.” 2019. Doctoral Dissertation, University of Colorado. Accessed March 08, 2021. https://scholar.colorado.edu/chemistry_gradetds/4.

MLA Handbook (7^th Edition):

Wallas, Jasmine Melissa. “Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries.” 2019. Web. 08 Mar 2021.

Vancouver:

Wallas JM. Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries. [Internet] [Doctoral dissertation]. University of Colorado; 2019. [cited 2021 Mar 08]. Available from: https://scholar.colorado.edu/chemistry_gradetds/4.

Council of Science Editors:

Wallas JM. Atomic and Molecular Layer Deposition for Efficient Capacitive Deionization, Plasma Corrosion Protection and Stable High-Energy Lithium Ion Batteries. [Doctoral Dissertation]. University of Colorado; 2019. Available from: https://scholar.colorado.edu/chemistry_gradetds/4

University of New South Wales

15. Li, Lizhuo. Drying ginger and preserving 6-gingerol content.

Degree: Chemical Sciences & Engineering, 2017, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/58228 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:45630/SOURCE02?view=true

► Ginger rhizome (Zingiber officinale Roscoe) is widely used as a spice or a folk medicine. 6-gingerol is the major bioactive component in fresh ginger and… (more)

Subjects/Keywords: Thin layer drying; Ginger; 6-gingerol; Two layer model; 6-gingerol perdition

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APA (6^th Edition):

Li, L. (2017). Drying ginger and preserving 6-gingerol content. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/58228 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:45630/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Li, Lizhuo. “Drying ginger and preserving 6-gingerol content.” 2017. Masters Thesis, University of New South Wales. Accessed March 08, 2021. http://handle.unsw.edu.au/1959.4/58228 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:45630/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Li, Lizhuo. “Drying ginger and preserving 6-gingerol content.” 2017. Web. 08 Mar 2021.

Vancouver:

Li L. Drying ginger and preserving 6-gingerol content. [Internet] [Masters thesis]. University of New South Wales; 2017. [cited 2021 Mar 08]. Available from: http://handle.unsw.edu.au/1959.4/58228 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:45630/SOURCE02?view=true.

Council of Science Editors:

Li L. Drying ginger and preserving 6-gingerol content. [Masters Thesis]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/58228 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:45630/SOURCE02?view=true

Anna University

16. Shanmugan S. Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;.

Degree: the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/28590

►

A major opportunity for the growth of polycrystalline thinfilmbased newlinePV industry is due to the shortage and increased cost of PVgrade single newlinecrystal silicon Sifeed… (more)

Subjects/Keywords: cdte thin films; science and humanities; stacked elemental layer

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APA (6^th Edition):

S, S. (2014). Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/28590

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

S, Shanmugan. “Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;.” 2014. Thesis, Anna University. Accessed March 08, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/28590.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

S, Shanmugan. “Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;.” 2014. Web. 08 Mar 2021.

Vancouver:

S S. Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Mar 08]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/28590.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

S S. Studies on the preparation and characterization of cdte thin films doped with 005 to 025 of sb zn and ag using stacked elemental layer method;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/28590

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Niinistö, Jaakko. Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors.

Degree: 2006, Helsinki University of Technology

URL: http://lib.tkk.fi/Diss/2006/isbn9512281708/

►

The atomic layer deposition (ALD) method was applied for fabricating high permittivity (high-k) dielectrics, viz. HfO2, ZrO2 and rare earth oxides, which can be used… (more)

▼

The atomic layer deposition (ALD) method was applied for fabricating high permittivity (high-k) dielectrics, viz. HfO2, ZrO2 and rare earth oxides, which can be used to replace SiO2 as gate and capacitor dielectric. The dielectrics were processed by ALD using novel cyclopentadienyl (Cp, -C5H5) precursors together with water or ozone as the oxygen source. ALD, which has been identified as an important thin film growth technique for microelectronics manufacturing, relies on sequential and saturating surface reactions of alternately applied precursors, separated by inert gas purging. The surface-controlled nature of ALD enables the growth of thin films of high conformality and uniformity with an accurate thickness control. The ALD technique is introduced and ALD processes for HfO2, ZrO2 and rare earth oxide films, as well as the applications of the high-k dielectrics in microelectronics are reviewed. The need for developing new ALD processes for the high-k materials is emphasized. ALD processes for HfO2 and ZrO2 were developed using Cp-type precursors. The effect of different oxygen sources, namely water or ozone, on the film growth characteristics and properties of the ALD-processed films was examined in detail. The oxide films were stoichiometric, with impurity levels below even 0.1 at-% for C or H. Electrical measurements showed promising dielectric properties such as high permittivity values and low leakage current densities. Other properties, such as structure, interfacial layer thickness and morphology, were also characterized. Compared to films processed by water, the ozone-processed films on H-terminated Si showed improved dielectric properties, as well as higher density, lower roughness and better initial growth rate. In addition, in situ gas-phase measurements by quadrupole mass spectrometry (QMS) were performed in order to study the ZrO2 growth mechanism. A number of Cp-precursors were tested for the ALD of several rare earth oxide films. The thermal stability of many of the precursors was limited, but nevertheless, ALD-type processes were developed for Y2O3 and Er2O3 films. High reactivity of the Cp-precursors towards water resulting in high growth rates (1.2-1.7 Å/cycle) and purity of the Y2O3 and Er2O3 films were realized. Despite the detected partial decomposition of the (CpMe)3Gd precursor, Gd2O3 films with high growth rate and purity as well as effective permittivity of about 14 were deposited. Finally, promising processes for ternary scandates, namely YScO3, GdScO3, and ErScO3, were developed using either Cp- or β-diketonate-based processes. These as-deposited ternary films were amorphous exhibiting high effective permittivity (14-15), low leakage current density, and resistance towards crystallization upon annealing even up to 800°C.

Inorganic chemistry publication series / Helsinki University of Technology, ISSN 1458-5154; 5

Advisors/Committee Members: Helsinki University of Technology, Department of Chemical Technology, Laboratory of Inorganic and Analytical Chemistry.

Subjects/Keywords: atomic layer deposition; ALD; high-k dielectrics; oxide thin films; cyclopentadienyl

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APA (6^th Edition):

Niinistö, J. (2006). Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors. (Thesis). Helsinki University of Technology. Retrieved from http://lib.tkk.fi/Diss/2006/isbn9512281708/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Niinistö, Jaakko. “Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors.” 2006. Thesis, Helsinki University of Technology. Accessed March 08, 2021. http://lib.tkk.fi/Diss/2006/isbn9512281708/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Niinistö, Jaakko. “Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors.” 2006. Web. 08 Mar 2021.

Vancouver:

Niinistö J. Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors. [Internet] [Thesis]. Helsinki University of Technology; 2006. [cited 2021 Mar 08]. Available from: http://lib.tkk.fi/Diss/2006/isbn9512281708/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Niinistö J. Atomic Layer Deposition of High-k Dielectrics from Novel Cyclopentadienyl-Type Precursors. [Thesis]. Helsinki University of Technology; 2006. Available from: http://lib.tkk.fi/Diss/2006/isbn9512281708/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Harjuoja, Jenni. Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films.

Degree: 2007, Helsinki University of Technology

URL: http://lib.tkk.fi/Diss/2007/isbn9789512287031/

►

This thesis describes the deposition of binary lead oxide and ternary lead titanate, lead zirconate, bismuth silicate, and bismuth titanate films by atomic layer deposition… (more)

▼

This thesis describes the deposition of binary lead oxide and ternary lead titanate, lead zirconate, bismuth silicate, and bismuth titanate films by atomic layer deposition (ALD) and characterization of structural, compositional and surface properties of the films. The first part of the thesis reviews the principles of the ALD technique and the relevant literature on perovskite oxides and films and the deposition of lead and bismuth films by ALD, and the second part summarizes the experimental work reported in the five appended publications. On the basis of the binary lead oxide depositions, the Ph4Pb/O3 process was chosen for the ternary oxide studies. Careful optimization of the pulsing ratio of the binary oxides allowed processing of stoichiometric perovskite PbTiO3 and PbZrO3 thin films. Crystalline PbTiO3 on Si(100) was detected after annealing at 600 °C. In the case of lead zirconate, the perovskite phase (PbZrO3) was obtained on SrTiO3(100) after annealing at 600 °C. In both cases, a slight excess of lead enhanced the crystallinity. Roughness values were nevertheless higher than values obtained in binary processes. A new bimetallic precursor Bi(CH2SiMe3)3 was introduced for the deposition of bismuth silicate. With ozone as oxidizing agent, ALD-window for Bi-Si-O thin film growth was found at 250-350 °C. The Si to Bi atomic ratio in this region was about 2. Addition of a second bismuth precursor, BiPh3, increased the bismuth content. Combination of the BiPh3/O3 process and the Ti(O-i-Pr)4/H2O process allowed successful deposition of bismuth titanate. Good control of the film stoichiometry was achieved at the deposition temperature of 250 °C. Both as-deposited ternary bismuth oxides were amorphous. After annealing at 600 °C, the a-axis-oriented Bi2SiO5 phase was detected. Higher annealing temperatures were necessary for bismuth titanate. The most textured film of Bi4Ti3O12 was obtained in N2 atmosphere at annealing temperature of 1000 °C. Roughness values of the thin films were reasonable, being in the range of 0.3-1.3 nm.

Inorganic chemistry publication series / Helsinki University of Technology, ISSN 1458-5154; 7

Advisors/Committee Members: Helsinki University of Technology, Department of Chemical Technology, Laboratory of Inorganic and Analytical Chemistry.

Subjects/Keywords: ALD; atomic layer deposition; oxides; thin films; lead oxides; bismuth oxides

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APA (6^th Edition):

Harjuoja, J. (2007). Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films. (Thesis). Helsinki University of Technology. Retrieved from http://lib.tkk.fi/Diss/2007/isbn9789512287031/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Harjuoja, Jenni. “Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films.” 2007. Thesis, Helsinki University of Technology. Accessed March 08, 2021. http://lib.tkk.fi/Diss/2007/isbn9789512287031/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Harjuoja, Jenni. “Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films.” 2007. Web. 08 Mar 2021.

Vancouver:

Harjuoja J. Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films. [Internet] [Thesis]. Helsinki University of Technology; 2007. [cited 2021 Mar 08]. Available from: http://lib.tkk.fi/Diss/2007/isbn9789512287031/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Harjuoja J. Atomic Layer Deposition of Binary and Ternary Lead and Bismuth Oxide Thin Films. [Thesis]. Helsinki University of Technology; 2007. Available from: http://lib.tkk.fi/Diss/2007/isbn9789512287031/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Australia

19. Connor, Jason N. Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage.

Degree: PhD, 2001, University of South Australia

URL: http://arrow.unisa.edu.au:8081/1959.8/84721 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:42584

Subjects/Keywords: Electric double layer.; Thin films.

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APA (6^th Edition):

Connor, J. N. (2001). Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage. (Doctoral Dissertation). University of South Australia. Retrieved from http://arrow.unisa.edu.au:8081/1959.8/84721 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:42584

Chicago Manual of Style (16^th Edition):

Connor, Jason N. “Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage.” 2001. Doctoral Dissertation, University of South Australia. Accessed March 08, 2021. http://arrow.unisa.edu.au:8081/1959.8/84721 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:42584.

MLA Handbook (7^th Edition):

Connor, Jason N. “Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage.” 2001. Web. 08 Mar 2021.

Vancouver:

Connor JN. Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage. [Internet] [Doctoral dissertation]. University of South Australia; 2001. [cited 2021 Mar 08]. Available from: http://arrow.unisa.edu.au:8081/1959.8/84721 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:42584.

Council of Science Editors:

Connor JN. Measurement of interactions between solid and fluid surfaces : deformability, electrical double layer forces and thin film drainage. [Doctoral Dissertation]. University of South Australia; 2001. Available from: http://arrow.unisa.edu.au:8081/1959.8/84721 ; http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:42584

20. Meril, Mathew. Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping.

Degree: Physics, 2009, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/1947

►

In the present work, structural, optical and electrical properties of indium sulfide are tuned by specific and controlled doping. Silver, tin, copper and chlorine were… (more)

Subjects/Keywords: Indium Sulfide; Thin Film Solar Cells; Doping; Buffer layer; Thermal Diffusion

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APA (6^th Edition):

Meril, M. (2009). Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/1947

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Meril, Mathew. “Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping.” 2009. Thesis, Cochin University of Science and Technology. Accessed March 08, 2021. http://dyuthi.cusat.ac.in/purl/1947.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Meril, Mathew. “Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping.” 2009. Web. 08 Mar 2021.

Vancouver:

Meril M. Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping. [Internet] [Thesis]. Cochin University of Science and Technology; 2009. [cited 2021 Mar 08]. Available from: http://dyuthi.cusat.ac.in/purl/1947.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Meril M. Engineering the Properties of Indium Sulfide for Thin Film Solar Cells by Doping. [Thesis]. Cochin University of Science and Technology; 2009. Available from: http://dyuthi.cusat.ac.in/purl/1947

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rhodes University

21. Paton, L T. An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine.

Degree: Faculty of Science, Pharmacy, 1969, Rhodes University

URL: http://hdl.handle.net/10962/d1013023

► Pregnanediol (5B Pregnane- 3⋉- 20⋉- dial) is the chief urinary metabolite of progesterone, and as such is important in that variations in its concentration reflect… (more)

▼ Pregnanediol (5B Pregnane- 3⋉- 20⋉- dial) is the chief urinary metabolite of progesterone, and as such is important in that variations in its concentration reflect variations in progesterone secretion. Estimations of pregnanediol concentration are therefore of considerable interest to the obstetrician and gynaecologist. Pregnanediol was first identified in the urine of pregnant women in 1929 by Marrian. Nearly ten years later Venning developed a method by which the glucuronic acid ester of pregnanediol could be extracted from the urine and its concentration gravimetrically determined. Numerous variations of the Venning theme were published in the next few years, each being claimed by its authors to be an improvement on the original. Most of these involved the estimation of the conjugated form, and it was a while before the advantage of estimating the hydrolysed aglycone was realized. Hydrolysis, when it was practised, resolved itself into two methods - namely, hydrolysis by heating the urine with a mineral acid, and enzymic hydrolysis by incubation with beta-glucuronidase. Acid hydrolysis, while producing a less clean hydrolysate, is more rapid and convenient than enzyme hydrolysis, and is used in the Klapper method which is presently the most widely used method in clinical studies. Klapper employs a double chromategraphic column separation of pregnanediol followed by colorimetric evaluation. Variations of Klapper's method have also appeared and not a few investigators have published comparisons of the various methods. Klapper himself compared his method to certain other methods and concluded that his was definitely superior. Of the accuracy of the Klapper method there is no doubt. Subsequent methods have proved more sensitive, but in terms of practicability Klapper's is the method of choice. As was pointed out with some complacency, "practicability is most satisfactory, one technician readily performing some twenty determinations in one week." In contrast to the flood of criticisms, comparisons, variations, claims and counter-claims which accompanied the publication of the abovementioned methods, the thin layer chromatographic method perfected by Waldi attracted very little attention. It is very much more rapid than all other existing techniques, is very sensitive, specific and of acceptable accuracy. In an attempt to ensure its usefulness for clinical and medical research laboratories, the Waldi method has been marketed in 'kit' form. It is intended primarily as a diagnostic aid in establishing pregnancy, and as such it might have enjoyed considerable application had it not been for the advent of the immunological method of pregnancy diagnosis which is very much more rapid. Nevertheless, the Waldi method, used purely as a means of assessing the pregnanediol content of the urine is extremely useful, and it is the purpose of this investigation to establish this usefulness, especially with respect to routine clinical investigations. The validity of some diagnoses which are based on pregnanediol assay results, is also…

Subjects/Keywords: Thin layer chromatography; Pregnanediol

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Paton, L. T. (1969). An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1013023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Paton, L T. “An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine.” 1969. Thesis, Rhodes University. Accessed March 08, 2021. http://hdl.handle.net/10962/d1013023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Paton, L T. “An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine.” 1969. Web. 08 Mar 2021.

Vancouver:

Paton LT. An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine. [Internet] [Thesis]. Rhodes University; 1969. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10962/d1013023.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Paton LT. An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine. [Thesis]. Rhodes University; 1969. Available from: http://hdl.handle.net/10962/d1013023

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Coelho, Karen Dias. Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas.

Degree: 2010, Universidade Federal do Rio Grande

URL: http://repositorio.furg.br/handle/1/2953

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Dissertação(mestrado) - Universidade Federal do Rio Grande, Programa de Pós-Graduação em Engenharia e Ciência de Alimentos, Escola que Química e Alimentos, 2010.

O tomate (Lycopersicon… (more)

▼

Dissertação(mestrado) - Universidade Federal do Rio Grande, Programa de Pós-Graduação em Engenharia e Ciência de Alimentos, Escola que Química e Alimentos, 2010.

O tomate (Lycopersicon esculentum Mill) constitui um alimento rico em vitaminas dos complexos A e B e minerais importantes, além de ácido fólico, cálcio e frutose. Ainda o tomate contém licopeno, que é um poderoso antioxidante, capaz de neutralizar a ação dos radicais livres, responsáveis pelo envelhecimento e degeneração das células Poucos produtos in natura têm um conteúdo de umidade tão alto quanto o tomate (cerca de 95%, b.u.) e a sua desidratação tem sido um desafio. A secagem é uma importante operação unitária na conservação de alimentos, pois tem a finalidade de reduzir a atividade de água e conseqüentemente a ação microbiana, reações enzimáticas, oxidativas e hidrolíticas do produto e aumentar sua vida útil. Este trabalho teve como objetivo principal analisar as condições operacionais da secagem de tomate em camada delgada, com escoamento paralelo do ar de secagem, avaliando as características do produto final. Os objetivos específicos foram caracterizar a secagem através de curvas características experimentais, determinar a constante de secagem, difusividade efetiva de umidade e energia de ativação e definir a condição mais adequada para a secagem em camada delgada de tomate utilizando a metodologia de superfície de resposta. As variáveis estudadas foram temperatura (60, 70 e 80°C) e espessura da fatia de tomate (3, 5 e 7mm), buscando como resposta o teor de licopeno, cor, através do ângulo de Hue, e capacidade de produção. Os resultados mostraram que a secagem de tomate em camada delgada, com escoamento paralelo do ar, apresentou o período de taxa constante e primeiro e segundo períodos de taxa decrescente. A difusividade efetiva ficou entre 1,56.10-10 e 2,67.10-10 m²/s para o primeiro período de taxa decrescente e entre 4,21.10-11 e 8,35.10-11 m²/s para o segundo período de taxa decrescente. A energia de ativação apresentou valores médios de 16,99 e 30,64 kJ.mol-1 para o primeiro e segundo período de taxa decrescente, respectivamente. A condição mais adequada de operação encontrada foi temperatura do ar de secagem de 60°C e espessura da fatia de tomate de 3 mm, onde apresentou cor de 47,70°, teor de licopeno de 301,69 μg/g e capacidade de produção de 1,65 kg/m²h.

Tomato (Lycopersicon esculentum Mill) is a product rich in vitamins from complex A and B, and important minerals, besides folic acid, calcium and fructose. Tomato has also lycopene, that is a powerful antioxidant, able to neutralize radicals action, which causes the cell’s aging and degeneracy. Few in natura products have moisture content as high as tomato (about 95%, w.b.) and its dehydration has been a challenge. Drying is an important unit operation for food conservation, because its aim is to reduce the water activity and therefore the microbian action, enzymatic reactions, oxidative and hydrolytic of the product and raise its expiration date. The main purpose of the present…

Advisors/Committee Members: Pinto, Luiz Antonio de Almeida.

Subjects/Keywords: Camada delgada; Licopeno; Secagem; Tomate; Drying; Lycopene; Thin layer; Tomato

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Coelho, K. D. (2010). Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas. (Masters Thesis). Universidade Federal do Rio Grande. Retrieved from http://repositorio.furg.br/handle/1/2953

Chicago Manual of Style (16^th Edition):

Coelho, Karen Dias. “Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas.” 2010. Masters Thesis, Universidade Federal do Rio Grande. Accessed March 08, 2021. http://repositorio.furg.br/handle/1/2953.

MLA Handbook (7^th Edition):

Coelho, Karen Dias. “Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas.” 2010. Web. 08 Mar 2021.

Vancouver:

Coelho KD. Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas. [Internet] [Masters thesis]. Universidade Federal do Rio Grande; 2010. [cited 2021 Mar 08]. Available from: http://repositorio.furg.br/handle/1/2953.

Council of Science Editors:

Coelho KD. Secagem de tomate (Lycorpesicon esculentum Mill) em camada delgada: avaliação das características físico-químicas. [Masters Thesis]. Universidade Federal do Rio Grande; 2010. Available from: http://repositorio.furg.br/handle/1/2953

Cornell University

23. Hughes, Kevin. The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films.

Degree: PhD, Chemical Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/30680

► Atomic layer deposition (ALD) provides the ability to deposit highly conformal thin films with essentially molecular level control over film thickness. These characteristics have made… (more)

▼ Atomic layer deposition (ALD) provides the ability to deposit highly conformal thin films with essentially molecular level control over film thickness. These characteristics have made it an active area of research for a number of applications, notably in the field of semiconductor devices. The focus of the work presented here is on the initial stages of film growth, including the first interaction of gas phase ALD precursors with the substrate, and the period in which the growing surface transitions from the starting substrate to the steady-state growing film. Of particular interest are substrates modified using thin organic films. These organic films are used to alter the identity, density and spatial extent of functional groups on the surface. We begin with a review of the prior work in this area, focusing on the ALD of TiNx on a variety of organic films, including self-assembled monolayers with various endgroup chemistries, and branched films with a more 3-d distribution of functional groups. Here connections are observed between the initial interactions of the gas phase precursors with the organic film, and the subsequent stages of ALD growth. A relationship between the initial rate of ALD growth and the resulting film morphology is also observed, and can be explained by a variation in nucleation site density due to the structure of the organic film. The next section involves the ALD of a range of materials (Al2O3, HfO2, Ta2O5, and TaNx), on a single organic layer, branched poly(ethylene imine) (PEI). Here, the presence of the organic layer causes an attenuation in the amount of material deposited per ALD cycle in the initial stages of growth. A strong correlation was found between the thermodynamic driving force of the ALD reaction and the degree of attenuation, suggesting that ALD processes in which there is a strong driving force (or low activation energy) for the formation of the final products can more easily overcome the obstacles presented by the organic layer. The ALD of one material, TaNx, was examined in more detail using in situ XPS. Substrates in this study included nonporous SiO2, a porous low dielectric constant or 'low-[kappa]' material, and both substrates modified by PEI films. PEI was used here in part because of the tendency of smaller molecules to infiltrate and deposit within the pore network of the low-[kappa]. The chemical structure of the chemisorbed tantalum precursor, Ta[N(CH3)2]5, after the first cycle of ALD, as well as the oxidation state and chemical composition of the TaNx film in the first 10 cycles (~ 610 Å) were strongly affected by the starting substrate. Substrates with a high density of oxygen containing groups led to a more oxidized TaNx film, and less efficient incorporation of N in a nitride binding state. Furthermore, the presence of a PEI film enhanced the growth of TaNx at the surface of the porous low-[kappa], and limited infiltration of the pore network by the gas phase ALD precursors. A final set of experiments involved the early stages of cobalt film formation on… Advisors/Committee Members: Engstrom, James R (chair), Muller, David Anthony (committee member), Stroock, Abraham Duncan (committee member).

Subjects/Keywords: Atomic layer deposition; organic thin films; in situ XPS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hughes, K. (2011). The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/30680

Chicago Manual of Style (16^th Edition):

Hughes, Kevin. “The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films.” 2011. Doctoral Dissertation, Cornell University. Accessed March 08, 2021. http://hdl.handle.net/1813/30680.

MLA Handbook (7^th Edition):

Hughes, Kevin. “The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films.” 2011. Web. 08 Mar 2021.

Vancouver:

Hughes K. The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1813/30680.

Council of Science Editors:

Hughes K. The Initial Stages Of Atomic Layer Deposition On Substrates Modified By Organic Thin Films. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/30680

24. Jacobs, Leon. Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents.

Degree: PhD, 2017, Stellenbosch University

URL: http://hdl.handle.net/10019.1/102578

►

Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science.

ENGLISH ABSTRACT: 3-Methyl benzofuran antiplasmodial compounds have been described in literature and and synthesis… (more)

▼

Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science.

ENGLISH ABSTRACT: 3-Methyl benzofuran antiplasmodial compounds have been described in literature and and synthesis of heterocyclic derivatives forms the basis of this project. These benzofuran compounds were synthesized with the primary role as effective inhibitors of the enzyme Plasmodium falciparum N-Myristoyl transferase (PfNMT). PfNMT plays an important enzymatic function in the majority of all living organisms, facilitating the myristoylation of N-terminal glycine residues of proteins that serve many functions in vivo, and is considered vital to the viability of not only most organisms, but P. falciparum too. The rationale behind the key features of these antiplasmodial compounds include the heterocyclic scaffold that induces π – π stacking with amino acid residues at the active site of PfNMT, aromatic amide and ester groups also necessary for π – π stacking and a piperidinium salt coupled to the heterocycle, providing a salt-bridge interaction with neighboring amino acid residues. Five different heterocycles were synthesized with the primary function of replacing the benzofuran moiety in order to ascertain which heterocyclic system is the most efficacious. We synthesized indole, 3-methyl indole, 1-methyl benzimidazole, benzoxazole and benzothiophene scaffolds, each containing an ester group at the C2-position necessary for transesterification and amidation reactions, as well as a phenolic group at the C4-position (C7-position for the benzimidazole scaffold) required for the introduction of a piperidine group. The Boc-protected piperidine group was introduced first, followed by esterification reactions with 2-phenylethanol, benzyl alcohol and 1-naphthalenemethanol. Amidation reactions were also carried out with 2-phenethylamine, benzylamine, 1-naphthylmethylamine and 4-(aminomethyl)pyridine. The synthesis of each series of heterocyclic antiplasmodials was realized after the final Boc-deprotection step, providing all the compounds in salt form. These compounds were sent for whole-cell testing against a P. falciparum chloroquine sensitive strain (NF54) with the intention to prove which heterocycle and aromatic ester or amide substituent improves the efficacy the most, and validate the importance of a methyl group on the 3-methyl indole and 1-methyl benzimidazole scaffold when comparing the efficacy of analogous esters and amides. The results indicated that the benzoxazole series of compounds were inactive and the 3-methyl indole series are the most active which returned IC50 values of 0.56 – 6.1 μM respectively, but is trailed closely in efficacy by the indole (IC50 values of 0.83 – 6.5 μM) and benzothiophene (IC50 values of 0.71 – 5.9 μM) series of compounds. The 1-methyl benzimidazole series of compounds were the least active with IC50 values between 7.4 – 13.3 μM apart from one compound indicating an IC50 value of 1.1 μM.

AFRIKAANSE OPSOMMING: ‘n Versameling van 3-metiel bensofuraan…

Advisors/Committee Members: Blackie, M. A. L., Pelly, S. C..

Subjects/Keywords: Plasmodium; Palladium compounds; Thin layer chromatography; Heterocyclic compounds

10 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jacobs, L. (2017). Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents. (Doctoral Dissertation). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/102578

Chicago Manual of Style (16^th Edition):

Jacobs, Leon. “Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents.” 2017. Doctoral Dissertation, Stellenbosch University. Accessed March 08, 2021. http://hdl.handle.net/10019.1/102578.

MLA Handbook (7^th Edition):

Jacobs, Leon. “Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents.” 2017. Web. 08 Mar 2021.

Vancouver:

Jacobs L. Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents. [Internet] [Doctoral dissertation]. Stellenbosch University; 2017. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10019.1/102578.

Council of Science Editors:

Jacobs L. Synthesis of fused heterocyclic aromatic compounds as potential antiplasmodial agents. [Doctoral Dissertation]. Stellenbosch University; 2017. Available from: http://hdl.handle.net/10019.1/102578

Stellenbosch University

25. Mambilima, Nelia. Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa.

Degree: MSc, Medical Imaging and Clinical Oncology, 2016, Stellenbosch University

URL: http://hdl.handle.net/10019.1/98859

► ENGLISH SUMMARY : Radiopharmaceutical kits are supplied by manufacturers with package inserts containing information about the kit including validated methods of preparation and radiochemical purity… (more)

▼ ENGLISH SUMMARY : Radiopharmaceutical kits are supplied by manufacturers with package inserts containing information about the kit including validated methods of preparation and radiochemical purity (RCP) analysis. Validated analytical methods are also described in pharmacopoeial monographs. However the information provided is not always complete or practical and in a hospital setting it can be difficult to select and perform adequate RCP testing on the prepared radiopharmaceuticals. This situation has led to modifications or substitution for much quicker, simplified, safe or cost-effective analytical procedures. A number of these procedures have been proposed in published literature and have been incorporated in some hospital settings including radio pharmacies in Africa. Since the responsibility of any method that deviates from the official pharmacopoeial or manufacturer’s method rests with the end user, this study was aimed to determine whether appropriate validation procedures based on the Q2A and Q2B guidelines of the International Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) are feasible for use in a resource limited environment, which pertains in most hospital radio pharmacy settings in Southern Africa. A further aim was to develop a prototype protocol for validation of analytical procedures in a hospital radio pharmacy setting. In an attempt to undertake a full analytical method validation, eight validation parameters described in the ICH guidelines were selected for the current study namely specificity, accuracy, precision (repeatability and intermediate precision), linearity, range, limit of detection, limit of quantitation and robustness. To undertake the validation exercise, fast RCP test methods for Tc-99m sestamibi involving the use of Whatman 31ET and Schleicher and Schuell chromatography paper were used. Locally procured Macherey-Nagel (MN) Alox N aluminium oxide TLC strips were intended as control method as the Baker-Flex aluminium oxide TLC strips described in the manufacturer’s instructions could not be sourced. All the tests were performed in triplicate and results were compared. A limited number of tests was also performed on Baker-Flex TLC strips to compare with the results of the substitute MN Alox method. The radiochemical components namely Tc-99m sestamibi, Tc-99m colloid and pertechnetate that were prepared in house and were assumed to be 100 % pure, were each tested on the chromatography strips. Samples containing mixtures of varying concentrations of the radiochemical components were also tested on all the strips. Radiochemical purity test results of sestamibi samples without any added impurities were 99.8 % ± 0.0 % for Macherey-Nagel Alox TLC, 99.5 % ± 0.1 % for Whatman 31ET paper and 99.3 % ± 0.2 % for Schleicher and Schuell paper chromatography strips. When Tc-99m pertechnetate and Tc-99m colloid were added to Tc-99m sestamibi as impurities after completion of kit reconstitution, the values for sestamibi were in all cases higher than… Advisors/Committee Members: Rubow, Sietske Margarete, Stellenbosch University. Faculty of Medicine and Health Sciences. Dept. of Medical Imaging and Clinical Oncology. Nuclear Medicine..

Subjects/Keywords: Radiochemical analysis; Radioisotopes in pharmacology; Sestamibi; Thin layer chromatography; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mambilima, N. (2016). Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa. (Masters Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/98859

Chicago Manual of Style (16^th Edition):

Mambilima, Nelia. “Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa.” 2016. Masters Thesis, Stellenbosch University. Accessed March 08, 2021. http://hdl.handle.net/10019.1/98859.

MLA Handbook (7^th Edition):

Mambilima, Nelia. “Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa.” 2016. Web. 08 Mar 2021.

Vancouver:

Mambilima N. Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa. [Internet] [Masters thesis]. Stellenbosch University; 2016. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10019.1/98859.

Council of Science Editors:

Mambilima N. Validation of radiochemical purity analysis methods used in two tertiary public hospitals in South Africa. [Masters Thesis]. Stellenbosch University; 2016. Available from: http://hdl.handle.net/10019.1/98859

Addis Ababa University

26. Afrasa, Mulatu. Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease .

Degree: 2013, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/420

► Coffee Wilt Disease (CWD) is a vascular disease caused by the fungal pathogen; Fusarium xylarioides and one of the most important diseases of coffee that… (more)

▼ Coffee Wilt Disease (CWD) is a vascular disease caused by the fungal pathogen; Fusarium xylarioides and one of the most important diseases of coffee that was prevalent in Ethiopia. The use of indigenous antagonistic isolates of Trichoderma would be a nature conserving means to combat this disease. The current research work was designed to isolate, extract, characterize, evaluate and determine the antifungal compounds from Trichoderma isolates against F. xylarioides. An experiment was conducted to extract, characterize, purify, evaluate and determine the antagonistic potential of antifungal compounds from six Trichoderma isolates that were inhibitory towards F. xylarioides. For extraction of antifungal compounds from fungal mycelium or culture media different organic solvents: CHCl3, EtOH, MeOH, EtOAc, n-hexane, and butane were used. The chloroform, ethanol and butane extracts were screened for their antifungal activity. A direct bioautographic procedure, involving spraying suspension of F. xylarioides on TLC plates developed in solvents of varying polarities was used to detect a number of antifungal compounds present in the extracts. Moreover, in-vitro antagonistic bioassays were performed to test, evaluate and determine the potentiality of Trichoderma isolates as biological control agents against F. xylarioides. The study indicated that antifungal compounds were successfully extracted from fungal culture media with all organic solvents used except hexane. For purification and separation of crude extracts on a TLC, the optimum Rf value was obtained by only three extracting solvents: CHCl3, EtOH and Butane using seven pre-screened solvent systems. Bioautography assay revealed 60 zones of inhibition spots and the highest inhibition zone was observed in AUT5 (51 mm) and AUT6 (44 mm) with EtOH extract at Rf value of 0.43. In in-vitro bioassay, the highest mean inhibitory effect on the growth of the pathogen was achieved by AUT2 (77.4%) isolate followed AUT3 (72.9) in dual culture. The minimum inhibitory concentration (MIC) of non-volatile compounds was observed in isolate AUT3 and AUT6 to be 5% of culture filtrate. In general, TLCdirected bioautography assay was useful in isolating active compounds with antifungal activity and all Trichoderma isolates were accounted for reduction in mycelial growth of the test pathogen in-vitro. Advisors/Committee Members: Dr. Tesfaye Alemu (advisor).

Subjects/Keywords: Antagonistic activity; Bioassay methods; Bioautography; Organic solvent polarity; Thin layer chromatography

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APA (6^th Edition):

Afrasa, M. (2013). Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/420

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Afrasa, Mulatu. “Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease .” 2013. Thesis, Addis Ababa University. Accessed March 08, 2021. http://etd.aau.edu.et/dspace/handle/123456789/420.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Afrasa, Mulatu. “Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease .” 2013. Web. 08 Mar 2021.

Vancouver:

Afrasa M. Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease . [Internet] [Thesis]. Addis Ababa University; 2013. [cited 2021 Mar 08]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/420.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Afrasa M. Characterization and Testing of Antifungal Extracts from Trichoderma Isolates against Fusarium xylarioides, the causative agent of coffee wilt disease . [Thesis]. Addis Ababa University; 2013. Available from: http://etd.aau.edu.et/dspace/handle/123456789/420

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University College Cork

27. Hairisha, Abulaiti. Synthesis, modelling and deposition of organic thin films.

Degree: 2017, University College Cork

URL: http://hdl.handle.net/10468/4709

► Organic and organic/inorganic hybrid thin film materials have various potential applications because they combine the distinct properties of organic and inorganic components. Molecular layer deposition… (more)

▼ Organic and organic/inorganic hybrid thin film materials have various potential applications because they combine the distinct properties of organic and inorganic components. Molecular layer deposition (MLD) is a promising method to deposit high-quality uniform thin films composed of organic and organic/inorganic hybrid thin films. In this thesis, we use MLD to deposit acrylate based organic/inorganic hybrid thin films, which have many potential applications due to its strong adhesive properties. To achieve this goal, we simulate various precursors and their reactions for acrylate based MLD processes to find the most suitable precursors and to study the MLD reaction mechanism using density functional theory (DFT). The analysis based on DFT serves to facilitate and interpret the results from MLD experiments and various thin films characterization. We use computational techniques based on quantum chemical calculations to study the acrylate-based precursors and reactions for our MLD processes. We demonstrate acrylate-based hybrid organic/inorganic thin film growth on silicon (100) substrate with a new ABC-style MLD process employing trimethylaluminum (TMA), ethanolamine (EA) and vinyl methacrylate (VM) as precursors at the temperature of 70 to 150 °C. Appreciably uniform and smooth thin films were grown with thickness increasing linearly with MLD cycles. From the film thicknesses measured by SEM the maximum deposition rate of 1.7 Å per cycle was obtained for this MLD process. Surface morphology was investigated using AFM showing root-mean-square roughness of 8.9 Å. The hydrophilic property of the films increased with film thickness as identified by contact angle measurements. The structures predicted with DFT are consistent with the FTIR, Raman and XPS analysis, which show Al-N, N-Al-O and other chemical bonds in the thin films. The results from experiment and computation confirm that the proposed acrylate-based hybrid films were formed during the MLD process. As part of collaborative research project between CIC nanoGUNE and Tyndall, we also investigate the interactions of TMA and diethyl zinc (DEZ) with the organic functional groups –OH, –NH2 and –NO2 in the respective substituted phenyls, as well as their stability upon exposure to air. Secondly, we carry out DFT calculations to understand how DEZ and subsequently H2O react with Kevlar, and then find out how these structures influence Kevlar’s properties. We found that DEZ reacts with Kevlar so that fragments of DEZ form cross-links between chains of the Kevlar polymer. The original hydrogen bonds in Kevlar are replaced by stronger Zn-O and Zn-N bonds, which can explain the experimental finding that shows the ALD infiltrated kevlar remains its toughness when exposed to UV light. Advisors/Committee Members: Ward, Emer, Elliott, Simon D., Povey, Ian.

Subjects/Keywords: Molecular layer deposition; Density functional theory; Organic thin films; Acrylates

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APA (6^th Edition):

Hairisha, A. (2017). Synthesis, modelling and deposition of organic thin films. (Thesis). University College Cork. Retrieved from http://hdl.handle.net/10468/4709

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hairisha, Abulaiti. “Synthesis, modelling and deposition of organic thin films.” 2017. Thesis, University College Cork. Accessed March 08, 2021. http://hdl.handle.net/10468/4709.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hairisha, Abulaiti. “Synthesis, modelling and deposition of organic thin films.” 2017. Web. 08 Mar 2021.

Vancouver:

Hairisha A. Synthesis, modelling and deposition of organic thin films. [Internet] [Thesis]. University College Cork; 2017. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10468/4709.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hairisha A. Synthesis, modelling and deposition of organic thin films. [Thesis]. University College Cork; 2017. Available from: http://hdl.handle.net/10468/4709

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Technical University of Lisbon

28. Chaveiro, Nádia Raquel Encarnação. Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura.

Degree: 2013, Technical University of Lisbon

URL: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/5655

►

Mestrado em Engenharia Alimentar - Processamento de Alimentos - Instituto Superior de Agronomia

This work investigates the effect of a drastic cooking treatment in chemical… (more)

Subjects/Keywords: salmon; meagre; polyunsaturated fatty acids; bioacessibility; aquaculture; thin layer chromatography

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APA (6^th Edition):

Chaveiro, N. R. E. (2013). Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura. (Thesis). Technical University of Lisbon. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/5655

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chaveiro, Nádia Raquel Encarnação. “Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura.” 2013. Thesis, Technical University of Lisbon. Accessed March 08, 2021. https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/5655.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chaveiro, Nádia Raquel Encarnação. “Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura.” 2013. Web. 08 Mar 2021.

Vancouver:

Chaveiro NRE. Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura. [Internet] [Thesis]. Technical University of Lisbon; 2013. [cited 2021 Mar 08]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/5655.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chaveiro NRE. Bioacessibilidade de ácidos gordos em salmão e corvina de aquacultura. [Thesis]. Technical University of Lisbon; 2013. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/5655

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu

29. Radoičić, Aleksandra, 1977- 12925543. Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula.

Degree: Hemijski fakultet, 2019, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:20477/bdef:Content/get

►

Hemija / Chemistry

U okviru ovog rada proučavano je hromatografsko ponašanje serije Ru(II) kompleksa i odabranih anestetika u uslovima hromatografije hidrofilnih interakcija (Hydrophilic Interaction Liquid… (more)

▼

Hemija / Chemistry

U okviru ovog rada proučavano je hromatografsko ponašanje serije Ru(II) kompleksa i odabranih anestetika u uslovima hromatografije hidrofilnih interakcija (Hydrophilic Interaction Liquid Chromatography, HILIC). Sistematski je ispitivan uticaj sastava mobilne faze, tačnije sadržaja vode u mobilnoj fazi, na retenciju ovih jedinjenja u različitim hromatografskim sistemima primenom visokoefikasne tankoslojne hromatografije (High Performance Thin-Layer Chromatography, HPTLC) kao brze i efikasne hromatografske tehnike, koja, s obzirom na minimalnu upotrebu rastvarača i potrebu za derivatizacijom, spada u metode zelene analitičke hemije. Za hromatografsko ispitivanje izabrani su sorbenti različite polarnosti i adsorpcionih karakteristika, a kao mobilna faza izabrane su binarne smeše vode i organskih rastvarača različitog sastava, od čiste vode do čistog organskog rastvarača. Utvrđeno je da povećanje sadržaja vode u mobilnoj fazi dovodi do promene mehanizma odvajanja, odnosno obrtanja retencionog redosleda ispitivanih jedinjenja i pretpostavljeno da se sa povećanjem sadržaja vode u mobilnoj fazi mehanizam odvajanja menja od adsorpcije do particije, a retencione krive imaju karakterističan U oblik. Prelaz između adsorpcionog i particionog mehanizma je kontinualan i zavisi od hemijske prirode odvajanih supstanci, stacionarne faze kao i organske komponente mobilne faze. Silika-gel se može smatrati najpogodnijim stacionarnom fazom za odvajanje i sistematsko praćenje hromatografskog ponašanja ispitivanih jedinjenja u HILIC uslovima, dok se acetonitril pokazao kao najpodesniji rastvarač. Dobijeni rezultati doprinose razumevanju dominantnog mehanizma odvajanja, odnosno vrste i jačina interakcija koje se ostvaruju između odvajanih supstanci i stacionarne i mobilne faze, a mogu se upotrebiti i za određivanje važnih fizičko-hemijskih karakteristika analita, naročito lipofilnosti. Takođe, predloženi su optimalni sistemi za brzu i efikasnu analizu polarnih supstanci što je od velikog praktičnog značaja za analitiku lekova, hrane i uzoraka iz životne sredine. Razvijena je i validovana HPTLC metoda za kvantitativno određivanje amigdalina iz različitih uzoraka. Takođe, predložena je i validovana HPTLC metoda za kvantitativno određivanje deset najčešće korišćenih sintetičkih boja za životne namirnice.

Advisors/Committee Members: Milojković-Opsenica, Dušanka, 1962- 12601959.

Subjects/Keywords: Thin-layer chromatography; Hydrophilic interaction chromatography (HILIC); Ru(II) complexes; Lipophilicity

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APA (6^th Edition):

Radoičić, Aleksandra, 1. 1. (2019). Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:20477/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Radoičić, Aleksandra, 1977- 12925543. “Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula.” 2019. Thesis, Univerzitet u Beogradu. Accessed March 08, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:20477/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Radoičić, Aleksandra, 1977- 12925543. “Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula.” 2019. Web. 08 Mar 2021.

Vancouver:

Radoičić, Aleksandra 11. Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula. [Internet] [Thesis]. Univerzitet u Beogradu; 2019. [cited 2021 Mar 08]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:20477/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Radoičić, Aleksandra 11. Uticaj sadržaja vode u mobilnoj fazi na mehanizam odvajanja malih polarnih molekula. [Thesis]. Univerzitet u Beogradu; 2019. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:20477/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Chicago

30. Bishal, Arghya Kamal. Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements.

Degree: 2018, University of Illinois – Chicago

URL: http://hdl.handle.net/10027/22968

► Biomaterials are engineered to interact with biological systems for therapeutic and diagnostic clinical applications. These materials are used in medical devices and modern medicines. Biomaterials… (more)

▼ Biomaterials are engineered to interact with biological systems for therapeutic and diagnostic clinical applications. These materials are used in medical devices and modern medicines. Biomaterials can be synthesized in the laboratory or can be directly obtained from natural resources, and they constitute whole or part of a biomedical device or a living structure that can be utilized to execute, improve, enhance or restore a natural function. The surface of a biomaterial controls the interactions occurring at the interface between the biomaterial surface and its surrounding living environment. Hence, successful performance of a biomaterial relies on its surface properties. Many biomaterials do not have the appropriate surface functions and properties to cater to specific needs and applications. It would also be more effective and less time-consuming to modify selected surface properties. Therefore, appropriate surface modification and functionalization leading to significantly improved performance of biomaterials would be highly desirable and sought after. In modern surface science and engineering, nanotechnology is a potent tool to functionalize surfaces incorporating nanometer size thin films and nano-structural features into materials. In particular, thin films and coatings of functional metal oxides/metals can be used to nano-functionalize surfaces of biomaterials. Among the available deposition techniques, atomic layer deposition (ALD) offers unique advantages in yielding conformal thin films of metal oxides or metals (from a few Å to hundreds of nm thick), uniform coating on three-dimensional complex nano-structures, with precise control over thickness and stoichiometry of film at atomic or molecular level. Therefore, the performance and functionality of ALD functionalized biomaterials could be selectively altered, optimized and controlled as needed. This thesis primarily focuses on the development and optimization of low temperature ALD processes to improve functionalities of different biomaterials (e.g., collagen and polydimethylsiloxane), by depositing very thin film of metals/metal oxides (e.g., titania, platinum) at room or near room temperature. Several surface characterization techniques were utilized to investigate the physico-chemical surface properties of the ALD functionalized biomaterials followed by preliminary applications to assess the enhanced performance of those surface functionalized biomaterials, as a proof of concept. As a result of these studies, applications in prosthodontics, orthopedics and cardiology/heart surgery are being pursued. Advisors/Committee Members: Takoudis, Christos G (advisor), Sukotjo, Cortino (committee member), Stroscio, Michael A (committee member), Khetani, Salman R (committee member), Mathew, Mathew T (committee member), Jursich, Gregory (committee member), Takoudis, Christos G (chair).

Subjects/Keywords: Biomaterials; Surface functionalization; Atomic Layer Deposition (ALD); Thin film; Performance enhancements

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bishal, A. K. (2018). Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/22968

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bishal, Arghya Kamal. “Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements.” 2018. Thesis, University of Illinois – Chicago. Accessed March 08, 2021. http://hdl.handle.net/10027/22968.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bishal, Arghya Kamal. “Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements.” 2018. Web. 08 Mar 2021.

Vancouver:

Bishal AK. Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements. [Internet] [Thesis]. University of Illinois – Chicago; 2018. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10027/22968.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bishal AK. Functionalization of Biomaterials with Atomic Layer Deposition for Tunable Performance Enhancements. [Thesis]. University of Illinois – Chicago; 2018. Available from: http://hdl.handle.net/10027/22968

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations