subject:(voltammetry)

Cornell University

1. Gailey, Alycia. Wireless Neurophysiology For The Study Of Behavior In Health And Disease.

Degree: PhD, Biomedical Engineering, 2014, Cornell University

► The objective of this study was the development of a simple but versatile wireless voltammetry device that can wirelessly record the release of oxidizable neurotransmitters… (more)

▼ The objective of this study was the development of a simple but versatile wireless voltammetry device that can wirelessly record the release of oxidizable neurotransmitters in the central nervous system of freely moving research animals and to demonstrate the utility of the device in freely behaving rats. The rationale behind this approach is in allowing freedom of movement of small animal subjects during electrochemical recording of neurotransmitter release. Neurotransmitters play a vital role in signaling within the central nervous system. A variety of neurological diseases are associated with neurotransmitter abnormalities. Parkinson's disease is an example of such a disease, characterized by dopamine depletion in the basal ganglia structure due to a death of dopaminergic neurons in the substantia nigra. With the use of the wireless voltammetry device presented here, the motor abnormalities associated with Parkinson's disease can be examined in animal models during recording experiments without the mess of wires. Chapter 1 gives an introduction to dopamine and its role in a variety of brain functions from motor control to the feeling of pleasure. Chapter 2 demonstrates the utility of the wireless device in the recording of dopamine release in vitro. By comparing results of the conventional wired setup to results of the wireless setup, the reliability of the wireless device in detecting dopamine release is established. Chapter 3 presents the use of the wireless device in recording dopamine release in a live rat. In these experiments, the circuit board and battery were placed inside of a pouch that was secured onto the back of a rat with a harness. Chapter 4 presents a discussion of implications for a broad array of future work regarding the role of wireless voltammetry in studying the neurobiological underpinnings of observable behavior. Chapter 5 presents an electronics curriculum for junior and senior level high school students in the local school district. Advisors/Committee Members: Lindau, Manfred (chair), Linster, Christiane (committee member), Apsel, Alyssa B. (committee member), Guckenheimer, John Mark (committee member).

Subjects/Keywords: wireless; voltammetry; dopamine

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APA (6^th Edition):

Gailey, A. (2014). Wireless Neurophysiology For The Study Of Behavior In Health And Disease. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/37023

Chicago Manual of Style (16^th Edition):

Gailey, Alycia. “Wireless Neurophysiology For The Study Of Behavior In Health And Disease.” 2014. Doctoral Dissertation, Cornell University. Accessed January 23, 2021. http://hdl.handle.net/1813/37023.

MLA Handbook (7^th Edition):

Gailey, Alycia. “Wireless Neurophysiology For The Study Of Behavior In Health And Disease.” 2014. Web. 23 Jan 2021.

Vancouver:

Gailey A. Wireless Neurophysiology For The Study Of Behavior In Health And Disease. [Internet] [Doctoral dissertation]. Cornell University; 2014. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1813/37023.

Council of Science Editors:

Gailey A. Wireless Neurophysiology For The Study Of Behavior In Health And Disease. [Doctoral Dissertation]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/37023

University of the Western Cape

2. Nohako, Kanyisa. Immunosensors developed on clathrate platform compounds .

Degree: 2013, University of the Western Cape

URL: http://hdl.handle.net/11394/4428

► Organic noncyclic compounds were used in the development of immunosensor for rapid fish species detection. Flourene derivatives show unique chemical and physical properties because they… (more)

▼ Organic noncyclic compounds were used in the development of immunosensor for rapid fish species detection. Flourene derivatives show unique chemical and physical properties because they contain a rigid planar biphenyl unit, and the facile substitution at C9 position of the flourene can improve the solubility and processability of materials containing flourene without significantly increasing of steric interactions in the compounds backbone. 9-(4- methoxyphenyl)-9H-xanthen-9-ol is bulky, rigid and has an hydroxyl moiety that may act as a hydrogen – bond donor, as well as a pyranyl oxygen which is a potential hydrogen –bond acceptor. We have successfully synthesised 9,9’-(ethyne1,2-diyl)bis(flouren-9-ol) by reflux method and 9-(4-methoxyphenyl)-9H-xanthen-9-ol through stirring at room temperature. The products were characterised using spectroscopic methods and were found to be both UV/Vis active (λmax = 400 nm flourene derivative and λmax = 337 nm xanthene derivative ) and fluorescent (440nm and 467nm flourene derivative and 344 and 380 xanthene derivative). These compounds were drop coated onto commercial glassy carbon electrode (GCE) to produce thin films. Scan rate dependent cyclic voltammetry (CV) confirmed the electrodynamics of the thin films to be consistent with monolayer diffusion (De = 1.37x10-21 cm2/s flourene derivative and De = 9.79x10-21 cm2/s xanthene derivative). Surface concentration was estimated to be 1.55x10-13 mol cm-2 flourene derivative and 2.00x10-13 mol cm-2. These compounds were used for the inclusion of parvalbumin antibodies immobilised onto clathrate platform by incubation and were evaluated as immunosensors for fish species identification. The antibody/antigen binding event was evaluated using UV/Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM). The immunosensor response to parvalbumin in real samples of snoek (an indigenous fish species), tuna, fish paste, eyeshadow, lipstick, omega 3&6 and Scott's emulsion was evaluated. The sensitivity as calculated from EIS for each immunosensor was found to be 5.36x104 flourene derivative immunosensor and 4,11x104 xanthene derivative immunosensor and the detection limit of 1.50 pg/ml flourene derivative immunosensor and 2.42 pg/ml xanthene derivative immunosensor. The antibody/antigen binding was monitored as decrease in charge transfer resistance and increase in capacitance by EIS. The interfacial kinetics of the immunosensors were modelled as equivalent electrical circuit based on EIS data. The UV/Vis spectroscopy was used to confirm the binding of the antibody/antigen in solution by monitoring the intensity of the absorption peak. Advisors/Committee Members: Baker, P.G.L (advisor), Iwuoha, Emmanuel (advisor).

Subjects/Keywords: Clathrates; Immunosensors; Voltammetry

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APA (6^th Edition):

Nohako, K. (2013). Immunosensors developed on clathrate platform compounds . (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/4428

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):

Nohako, Kanyisa. “Immunosensors developed on clathrate platform compounds .” 2013. Thesis, University of the Western Cape. Accessed January 23, 2021. http://hdl.handle.net/11394/4428.

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

MLA Handbook (7^th Edition):

Nohako, Kanyisa. “Immunosensors developed on clathrate platform compounds .” 2013. Web. 23 Jan 2021.

Vancouver:

Nohako K. Immunosensors developed on clathrate platform compounds . [Internet] [Thesis]. University of the Western Cape; 2013. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/11394/4428.

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

Council of Science Editors:

Nohako K. Immunosensors developed on clathrate platform compounds . [Thesis]. University of the Western Cape; 2013. Available from: http://hdl.handle.net/11394/4428

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

NSYSU

3. Liao, Chin-yi. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.

Degree: Master, Electro-Optical Engineering, 2011, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

► In this research,we used the electrochemical (cyclic voltammetry) method to synthesize (polyaniline) PANI thin film on the top of ITO substrate which applied extensively on… (more)

Subjects/Keywords: PANI; PLED; cyclic voltammetry

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APA (6^th Edition):

Liao, C. (2011). The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

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):

Liao, Chin-yi. “The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.” 2011. Thesis, NSYSU. Accessed January 23, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128.

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

MLA Handbook (7^th Edition):

Liao, Chin-yi. “The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.” 2011. Web. 23 Jan 2021.

Vancouver:

Liao C. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. [Internet] [Thesis]. NSYSU; 2011. [cited 2021 Jan 23]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128.

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

Council of Science Editors:

Liao C. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

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

Oregon State University

4. Dewald, Lamar Robert. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.

Degree: PhD, Chemistry, 1984, Oregon State University

URL: http://hdl.handle.net/1957/41147

► An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of… (more)

▼ An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of voltammetric analysis to be implemented and multiple scans to be run unattended. A three operational amplifier potentiostat is used to control the cell voltage and convert the cell current to a voltage signal. A 16-bit digital-to-analog converter allows the computer to determine the cell voltage. A 12-bit analog-to-digital converter converts the signal to digital form for the computer to manipulate, store and display. The potentiostat is isolated electrically from the computer through the use of opto-isolators. The computer is interfaced to solid state switches, 3-way valves and pumps for control of electrode rotation, outgassing of 0₂. filling of the cell with a buffer solution, and evacuation of cell solution. Injection of spike solutions and rapid washing of the cell is also under computer control. Data manipulation handled by the microcomputer includes waveform generation, data acquisition, automatic background acquisition and subtraction, polynomial fitting of the baseline, and peak potential and peak current calculations. Instrument parameters were optimized in the differential pulse anodic stripping voltammetry mode with a rotating thin mercury film electrode on a glassy carbon disc support. With this system the heavy metals, Zn, Cd, Pb and Cu, were quantitated at 1 μg/L levels with five minute deposition periods and at 0.1 μg / L levels with thirty minute deposition. Metal speciation studies were carried out to evaluate the automation abilities of the instrument and to observe and demonstrate important problems in metal speciation studies with ASV. Pseudopol arography was used to confirm that EDTA formed a quasi-labile complex with Cu. Humic acid was adsorbed by the mercury electrode and reduced the response to metals. The ASV determinable Zn, Cd, Pb and Cu concentrations in a river water sample were found to be 4.0, 0.32, 0.15 and 0.40 μg/L, respectively. Some complexation capacity was observed as was adsorption of organics onto the electrode. Advisors/Committee Members: Ingle, James D. Jr (advisor).

Subjects/Keywords: Voltammetry – Automation

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APA (6^th Edition):

Dewald, L. R. (1984). A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/41147

Chicago Manual of Style (16^th Edition):

Dewald, Lamar Robert. “A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.” 1984. Doctoral Dissertation, Oregon State University. Accessed January 23, 2021. http://hdl.handle.net/1957/41147.

MLA Handbook (7^th Edition):

Dewald, Lamar Robert. “A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.” 1984. Web. 23 Jan 2021.

Vancouver:

Dewald LR. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. [Internet] [Doctoral dissertation]. Oregon State University; 1984. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1957/41147.

Council of Science Editors:

Dewald LR. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. [Doctoral Dissertation]. Oregon State University; 1984. Available from: http://hdl.handle.net/1957/41147

Rhodes University

5. Kruid, Jan. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.

Degree: MS, Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2013, Rhodes University

URL: http://hdl.handle.net/10962/d1018238

► Oxytetracycline (OTC) is a broad spectrum antibiotic used extensively in the agricultural and human-health sector, and is effective against various gram positive and –negative bacteria… (more)

Subjects/Keywords: Voltammetry; Electrodes; Oxytetracycline; Carbon nanotubes

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APA (6^th Edition):

Kruid, J. (2013). Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. (Masters Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1018238

Chicago Manual of Style (16^th Edition):

Kruid, Jan. “Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.” 2013. Masters Thesis, Rhodes University. Accessed January 23, 2021. http://hdl.handle.net/10962/d1018238.

MLA Handbook (7^th Edition):

Kruid, Jan. “Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.” 2013. Web. 23 Jan 2021.

Vancouver:

Kruid J. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. [Internet] [Masters thesis]. Rhodes University; 2013. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10962/d1018238.

Council of Science Editors:

Kruid J. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. [Masters Thesis]. Rhodes University; 2013. Available from: http://hdl.handle.net/10962/d1018238

Rhodes University

6. Brimecombe, Rory Dennis. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.

Degree: Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2011, Rhodes University

URL: http://hdl.handle.net/10962/d1009721

► Nanomaterials, in particular carbon nanotubes have been shown to exhibit favourable properties for the enhancement of electrochemical detection of target analytes in complex matrices. There… (more)

▼ Nanomaterials, in particular carbon nanotubes have been shown to exhibit favourable properties for the enhancement of electrochemical detection of target analytes in complex matrices. There is however scope for improvement in terms of the optimization thereof in electrochemical sensors surface modification. The aim of this thesis was to examine methods that would result in increased current response, lowered passivation and application of such modified surfaces with application to pharmaceutically and industrially relevant analytes. Current methods for enhancing the performance of carbon nanotubes include acid functionalization which not only increases the hydrophilicity of the nanotubes, and consequently their ability to provide stable (aqueous) suspensions, but also introduces electrochemically active sites. This particular approach is however not normalized in the literature. Over-exposure to acid treatment results in loss of structural integrity of the carbon nanotubes, and as such a fine balance exists between achieving these dual outcomes. Guided by high resolution scanning electron microscopy, atomic force microscopy, voltammetric and impedance studies, this thesis examined the role of the length of time of the acid functionalization process as well as the impact of activation of carbon nanotubes and fullerenes on electrochemical sensor performance. Based on desired charge transfer resistances, rate transfer coefficients and sensitivity towards redox probes the optimal length of acid functionalization for multiwalled carbon nanotubes was 9 hours and 4 hours for single-walled carbon nanotubes. Further improvements in the desired outcomes were achieved through electrochemical activation of the modified electrode surface by cycling in the presence of catechol, in a novel approach. By employing electrochemical impedance spectroscopy it was observed that catechol activation resulted in lowered charge transfer resistance, before and after activation, with functionalized multi-walled carbon nanotubes (9 hours) exhibiting the greatest decrease of 90 % and functionalized single-walled carbon nanotubes (4 hours), a 50 % decrease. Corresponding increases in the heterologous rate transfer coefficient showed a 770 % increase for functionalized multi-walled carbon nanotubes (9 hours), following catechol activation. Comparative observations for fullerenes following partial reduction in potassium hydroxide yielded a 30 % decrease in charge transfer resistance, with an increased heterologous rate transfer coefficient at a fullerene modified surface The performance of the nanomaterial modified electrodes was applied to the detection of wortmannin with applications in bioprocess control and in the pharmaceutical sector as well as to the detection and monitoring of the industrial dye Reactive red. Of particular relevance to these analytes was the assessment of the nanomaterial modified electrodes for enhanced stability, reproducibility, sensitivity and decreased passivation effects. In this study the first known account of…

Subjects/Keywords: Voltammetry; Electrochemistry; Nanotubes; Nanostructured materials

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APA (6^th Edition):

Brimecombe, R. D. (2011). Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1009721

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):

Brimecombe, Rory Dennis. “Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.” 2011. Thesis, Rhodes University. Accessed January 23, 2021. http://hdl.handle.net/10962/d1009721.

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

MLA Handbook (7^th Edition):

Brimecombe, Rory Dennis. “Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.” 2011. Web. 23 Jan 2021.

Vancouver:

Brimecombe RD. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. [Internet] [Thesis]. Rhodes University; 2011. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10962/d1009721.

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

Council of Science Editors:

Brimecombe RD. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. [Thesis]. Rhodes University; 2011. Available from: http://hdl.handle.net/10962/d1009721

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

University of South Carolina

7. Parke, Brenna. A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder.

Degree: MSin Chemistry, Chemistry and Biochemistry, 2020, University of South Carolina

URL: https://scholarcommons.sc.edu/etd/5929

► Despite being a known toxin for several centuries, lead (Pb²⁺) is still utilized in commercial products including leaded gasoline, paint, and modern cosmetics. This… (more)

▼ Despite being a known toxin for several centuries, lead (Pb²⁺) is still utilized in commercial products including leaded gasoline, paint, and modern cosmetics. This presence has caused (Pb²⁺) to pollute the environment, including public drinking water sources. The recent outbreaks of elevated levels of (Pb²⁺) in the drinking water in Flint, Michigan and Washington D.C. have caused large populations to be exposed to the heavy metal for months at a time, raising a public health concern over the implications of widespread, long-term (Pb²⁺) exposure. Young children are most susceptible to the effects of (Pb²⁺) toxicity, exhibiting symptoms of cognitive and behavioral impairments. These symptoms are closely related to those exhibited by autism spectrum disorder (ASD) patients. ASD is of unknown etiology but is thought to be caused by a mixture of genetic factors and environmental toxins. ASD is also linked to abnormal serotonin functionality due to a large population being treated with selective serotonin reuptake inhibitors (SSRIs) to decrease anxiolytic behaviors. Serotonin (5-HT) is a neurotransmitter heavily involved in development, mood, and sleep. Despite the connection between ASD-like symptoms and (Pb²⁺) exposure, there have been no studies chronicling the effects of (Pb²⁺)exposure on the serotonergic system in vivo. We hypothesize that serotonergic neurotransmission will be altered as a direct result of Pb exposure. In vivo measurements require high temporal resolution, selectivity, and sensitivity; all achieved with fast-scan cyclic voltammetry (FSCV) and microelectrodes. Due to (Pb²⁺)exposure greatly affecting and serotonin’s critical role in proper development, the medial prefrontal cortex (mPFC) was chosen due to its dense population of serotonin neurons as well as being the last region to fully develop. In this study, mature mice were exposed to (Pb²⁺)in three experimental paradigms: acute, chronic, and perinatal studies. Behavioral tests were performed on the perinatal cohort prior to voltammetric measurements to observe any behavioral alterations as a result of Pb consumption. It was found that (Pb²⁺)affected the amplitude, but not the reuptake of evoked 5-HT in the acute cohort. There were no significant changes in voltammetric measurements nor behaviors after chronic and perinatal exposures. This work has shown that acute (Pb²⁺)exposure does alter serotonergic neurotransmission in the mPFC, but symptoms were not observed after long-term exposure to 15 ppb Pb2+ Advisors/Committee Members: Parastoo Hashemi.

Subjects/Keywords: Chemistry; Autism; Lead; Serotonin; Voltammetry

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APA (6^th Edition):

Parke, B. (2020). A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder. (Masters Thesis). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/5929

Chicago Manual of Style (16^th Edition):

Parke, Brenna. “A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder.” 2020. Masters Thesis, University of South Carolina. Accessed January 23, 2021. https://scholarcommons.sc.edu/etd/5929.

MLA Handbook (7^th Edition):

Parke, Brenna. “A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder.” 2020. Web. 23 Jan 2021.

Vancouver:

Parke B. A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder. [Internet] [Masters thesis]. University of South Carolina; 2020. [cited 2021 Jan 23]. Available from: https://scholarcommons.sc.edu/etd/5929.

Council of Science Editors:

Parke B. A Behavioral and Voltammetric Study of the Effects of Pb Exposure in Mice as a Model of Autism Spectrum Disorder. [Masters Thesis]. University of South Carolina; 2020. Available from: https://scholarcommons.sc.edu/etd/5929

University of Arizona

8. Gee, Taylor Allison. The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway .

Degree: 2020, University of Arizona

URL: http://hdl.handle.net/10150/642164

► Elucidating the chemical changes that underlie dysfunction of the central nervous system requires tools and techniques that enable rapid and accurate neurotransmitter quantification. The dopaminergic… (more)

Subjects/Keywords: Anesthesia; Dopamine; Opioids; Pain; Voltammetry

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APA (6^th Edition):

Gee, T. A. (2020). The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/642164

Chicago Manual of Style (16^th Edition):

Gee, Taylor Allison. “The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway .” 2020. Doctoral Dissertation, University of Arizona. Accessed January 23, 2021. http://hdl.handle.net/10150/642164.

MLA Handbook (7^th Edition):

Gee, Taylor Allison. “The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway .” 2020. Web. 23 Jan 2021.

Vancouver:

Gee TA. The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway . [Internet] [Doctoral dissertation]. University of Arizona; 2020. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10150/642164.

Council of Science Editors:

Gee TA. The Dopaminergic Encoding of Pain and Pain Relief in the Mesolimbic Pathway . [Doctoral Dissertation]. University of Arizona; 2020. Available from: http://hdl.handle.net/10150/642164

9. Fitzgerald, William F. A study of certain trace metals in sea water using anodic stripping voltammetry.

Degree: 1970, MIT and Woods Hole Oceanographic Institution

URL: http://hdl.handle.net/1912/1245

► Anodic stripping voltammetry utilizing a thin film mercury composite graphite electrode has been evaluated and applied for the direct analysis of the metals, Zn, Cu,… (more)

▼ Anodic stripping voltammetry utilizing a thin film mercury composite graphite electrode has been evaluated and applied for the direct analysis of the metals, Zn, Cu, Pb, and Cd in sea water. The electrode was observed to follow theoretical behavior for thin film electrodes and the technique was found not to be adversely affected by dissolved organic material in sea water. Good precision (ca., 5%) was obtained in both coastal and open ocean waters at the in situ concentrations of Zn, Cu, Pb, and Cd. It was shown that this method is at present most suitable for measurements of Cu, Pb, and Cd in sea water. Evidence is given suggesting that Ni may interfere with the determination of Zn through formation of an intermetallic compound, and further studies are indicated to understand this phenomenon. The anodic stripping apparatus was adapted and used conveniently on shipboard. It was demonstrated that stripping analysis could be combined with a method for the destruction of dissolved organic matter (photo-oxidation with ultra-violet radiation), and with an addification procedure to obtain measurements of trace metal speciation in sea water. An argument for the existence of Cu-aspartic acid chelates in sea water has been described theoretically and demonstrated empirically; suggesting that a significant fraction of Cu and other trace metals may be expected to be organically sequestered in sea water. A study of coastal waters employing the total method (anodic stripping-photo-oxidation-acidification) indicated the presence of a significant group of organic ligands that complex Cu (ca., 60%). It was also shown that the waters subject to gross pollution contain about 30% of the total Cu in very stable organic complexes that release Cu only when the dissolved organic matter is destroyed, and not when the pH of this sea water is adjusted to 3. An open ocean trace metal study of a thermal-front zone in the western Sargasso Sea gave data for Cu, Zn, Pb, and Cd that compared favorably with other relevant investigations. Higher free metal concentrations were observed south of the front than to the north, providing further evidence that these fronts may mark a change between southern and northern conditions in the Sargasso Sea. Data obtained from shipboard analyses using the total analytical method indicates the presence of weak organic complexes with Cu and Pb in open ocean waters.

Subjects/Keywords: Seawater; Voltammetry

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APA (6^th Edition):

Fitzgerald, W. F. (1970). A study of certain trace metals in sea water using anodic stripping voltammetry. (Thesis). MIT and Woods Hole Oceanographic Institution. Retrieved from http://hdl.handle.net/1912/1245

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):

Fitzgerald, William F. “A study of certain trace metals in sea water using anodic stripping voltammetry.” 1970. Thesis, MIT and Woods Hole Oceanographic Institution. Accessed January 23, 2021. http://hdl.handle.net/1912/1245.

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

MLA Handbook (7^th Edition):

Fitzgerald, William F. “A study of certain trace metals in sea water using anodic stripping voltammetry.” 1970. Web. 23 Jan 2021.

Vancouver:

Fitzgerald WF. A study of certain trace metals in sea water using anodic stripping voltammetry. [Internet] [Thesis]. MIT and Woods Hole Oceanographic Institution; 1970. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1912/1245.

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

Council of Science Editors:

Fitzgerald WF. A study of certain trace metals in sea water using anodic stripping voltammetry. [Thesis]. MIT and Woods Hole Oceanographic Institution; 1970. Available from: http://hdl.handle.net/1912/1245

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

University of Houston

10. Appanapalli, Sridhar Reddy. Organic & Polymer-based Lithium Ion Batteries.

Degree: MS, Mechanical Engineering, 2012, University of Houston

URL: http://hdl.handle.net/10657/772

► Polymer-based electrode and electrolyte components can pave the way for safe and flexible Lithium ion batteries. A total plastic battery requires an electrolyte layer to… (more)

Subjects/Keywords: Polymers; Cyclic voltammetry; Mechanical engineering

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APA (6^th Edition):

Appanapalli, S. R. (2012). Organic & Polymer-based Lithium Ion Batteries. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/772

Chicago Manual of Style (16^th Edition):

Appanapalli, Sridhar Reddy. “Organic & Polymer-based Lithium Ion Batteries.” 2012. Masters Thesis, University of Houston. Accessed January 23, 2021. http://hdl.handle.net/10657/772.

MLA Handbook (7^th Edition):

Appanapalli, Sridhar Reddy. “Organic & Polymer-based Lithium Ion Batteries.” 2012. Web. 23 Jan 2021.

Vancouver:

Appanapalli SR. Organic & Polymer-based Lithium Ion Batteries. [Internet] [Masters thesis]. University of Houston; 2012. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10657/772.

Council of Science Editors:

Appanapalli SR. Organic & Polymer-based Lithium Ion Batteries. [Masters Thesis]. University of Houston; 2012. Available from: http://hdl.handle.net/10657/772

11. Ndjeri-Ndjouhou, Marthe. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.

Degree: Docteur es, Chimie, 2012, Evry-Val d'Essonne

URL: http://www.theses.fr/2012EVRY0001

►

Ce travail de thèse a eu pour thème central la birnessite, un oxyde de manganèse ubiquiste dans le milieu naturel et jouant un rôle fondamental… (more)

▼

Ce travail de thèse a eu pour thème central la birnessite, un oxyde de manganèse ubiquiste dans le milieu naturel et jouant un rôle fondamental dans la géochimie des sols. La première partie de cette thèse a été consacrée à l’électrodépôt et à la caractérisation de la birnessite par des méthodes électrochimiques couplées à la diffraction des rayons X. La caractérisation DRX in-situ au cours de l’électrodépôt a permis de mettre en évidence, lorsqu’on est en présence du cation électrolytique Na+, la formation d’un précurseur, la busérite, alors qu’en présence du cation électrolytique K+, la synthèse aboutit directement à la birnessite sans formation d’intermédiaire. La réduction électrochimique de la birnessite a également été étudiée en fonction du milieu ([Mn(II)], pH, potentiel). Cette dernière se réduit en hausmannite(Mn3O4), feitknechtite (-MnOOH), ou en composé amorphe de Mn(II), selon les conditions expérimentales. Dans la deuxième partie de cette thèse, les films minces ont été utilisés pour étudier la réactivité de la birnessite vis-à-vis du glyphosate, ainsi que celle de son principal métabolite l’AMPA (acide amino-méthyl-phosphonique). Le glyphosate est dégradé avec formation simultanée d’AMPA, de formaldéhyde, d’ions phosphate, nitrate et ammonium sans modification macroscopique de la birnessite. Les quatre derniers sous-produits sont également obtenus lors de la dégradation de l’AMPA par la birnessite. Les bons rendements de dégradation obtenus au cours des interactions glyphosate/birnessite et AMPA/birnessite laissent envisager une possible application de ces échantillons pour le traitement des eaux usées.

This thesis has been focused on birnessite, a ubiquitous manganese oxide in the environment, which plays a fundamental role in soil geochemistry. The first part of this thesis has been devoted to the electrodeposition and the characterizations of birnessite by electrochemical methods coupled with X-ray diffraction. The in-situ XRD characterization during electrodeposition has shown, in presence of the electrolytic cation Na+, the formation of a precursor, buserite, whereas no precursor is formed in presence of electrolytic cation K+, the synthesis leading directly to birnessite. The electrochemical reduction of birnessite has also been studied in function of the medium ([Mn (II)], pH, potential). Birnessite is reduced into hausmannite (Mn3O4), feitknechtite (-MnOOH), or an amorphous compound of Mn (II), as function of experimental conditions. In the second part of this thesis, the thin films have been used to study the reactivity of birnessite for degrading glyphosate and its metabolite AMPA (amino-methyl phosphonic). Glyphosate is degraded with simultaneous formation of AMPA, formaldehyde, phosphate ion, nitrate ion and ammonium ion, without macroscopic modification of birnessite. The last four by-products are also obtained during the degradation of AMPA by birnessite. The good yields obtained during glyphosate / birnessite and AMPA / birnessite interactions permit to envisage a possible…

Advisors/Committee Members: Chaussé, Annie (thesis director).

Subjects/Keywords: Voltampérométrie cyclique; Cyclic voltammetry

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APA (6^th Edition):

Ndjeri-Ndjouhou, M. (2012). Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. (Doctoral Dissertation). Evry-Val d'Essonne. Retrieved from http://www.theses.fr/2012EVRY0001

Chicago Manual of Style (16^th Edition):

Ndjeri-Ndjouhou, Marthe. “Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.” 2012. Doctoral Dissertation, Evry-Val d'Essonne. Accessed January 23, 2021. http://www.theses.fr/2012EVRY0001.

MLA Handbook (7^th Edition):

Ndjeri-Ndjouhou, Marthe. “Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.” 2012. Web. 23 Jan 2021.

Vancouver:

Ndjeri-Ndjouhou M. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. [Internet] [Doctoral dissertation]. Evry-Val d'Essonne; 2012. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2012EVRY0001.

Council of Science Editors:

Ndjeri-Ndjouhou M. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. [Doctoral Dissertation]. Evry-Val d'Essonne; 2012. Available from: http://www.theses.fr/2012EVRY0001

University of Victoria

12. Qile, Geer. Platinum oxide reduction kinetics on polycrystalline platinum electrodes.

Degree: Department of Chemistry, 2016, University of Victoria

URL: http://hdl.handle.net/1828/7569

► A kinetic study on polycrystalline platinum (Pt) in sulphuric acid is presented. An electrochemical kinetic mechanism of Pt oxide reduction and surface oxide structures are… (more)

Subjects/Keywords: platinum; Voltammetry; Electrochemical analysis; oxidation

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APA (6^th Edition):

Qile, G. (2016). Platinum oxide reduction kinetics on polycrystalline platinum electrodes. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/7569

Chicago Manual of Style (16^th Edition):

Qile, Geer. “Platinum oxide reduction kinetics on polycrystalline platinum electrodes.” 2016. Masters Thesis, University of Victoria. Accessed January 23, 2021. http://hdl.handle.net/1828/7569.

MLA Handbook (7^th Edition):

Qile, Geer. “Platinum oxide reduction kinetics on polycrystalline platinum electrodes.” 2016. Web. 23 Jan 2021.

Vancouver:

Qile G. Platinum oxide reduction kinetics on polycrystalline platinum electrodes. [Internet] [Masters thesis]. University of Victoria; 2016. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/1828/7569.

Council of Science Editors:

Qile G. Platinum oxide reduction kinetics on polycrystalline platinum electrodes. [Masters Thesis]. University of Victoria; 2016. Available from: http://hdl.handle.net/1828/7569

Michigan State University

13. Olmstead, Michael Lee. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.

Degree: PhD, Department of Chemistry, 1968, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:36015

Subjects/Keywords: Voltammetry; Electrochemistry

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APA (6^th Edition):

Olmstead, M. L. (1968). Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:36015

Chicago Manual of Style (16^th Edition):

Olmstead, Michael Lee. “Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.” 1968. Doctoral Dissertation, Michigan State University. Accessed January 23, 2021. http://etd.lib.msu.edu/islandora/object/etd:36015.

MLA Handbook (7^th Edition):

Olmstead, Michael Lee. “Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.” 1968. Web. 23 Jan 2021.

Vancouver:

Olmstead ML. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. [Internet] [Doctoral dissertation]. Michigan State University; 1968. [cited 2021 Jan 23]. Available from: http://etd.lib.msu.edu/islandora/object/etd:36015.

Council of Science Editors:

Olmstead ML. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. [Doctoral Dissertation]. Michigan State University; 1968. Available from: http://etd.lib.msu.edu/islandora/object/etd:36015

Montana State University

14. Bonsteel, Russell Allen. A micro computer controlled high speed high resolution cyclic voltammeter.

Degree: MS, College of Letters & Science, 1986, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/6630

Subjects/Keywords: Voltammetry.; Voltameters.

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APA (6^th Edition):

Bonsteel, R. A. (1986). A micro computer controlled high speed high resolution cyclic voltammeter. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/6630

Chicago Manual of Style (16^th Edition):

Bonsteel, Russell Allen. “A micro computer controlled high speed high resolution cyclic voltammeter.” 1986. Masters Thesis, Montana State University. Accessed January 23, 2021. https://scholarworks.montana.edu/xmlui/handle/1/6630.

MLA Handbook (7^th Edition):

Bonsteel, Russell Allen. “A micro computer controlled high speed high resolution cyclic voltammeter.” 1986. Web. 23 Jan 2021.

Vancouver:

Bonsteel RA. A micro computer controlled high speed high resolution cyclic voltammeter. [Internet] [Masters thesis]. Montana State University; 1986. [cited 2021 Jan 23]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6630.

Council of Science Editors:

Bonsteel RA. A micro computer controlled high speed high resolution cyclic voltammeter. [Masters Thesis]. Montana State University; 1986. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6630

McGill University

15. Weber, Stephen G. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.

Degree: PhD, Department of Chemistry, 1979, McGill University

URL: https://escholarship.mcgill.ca/downloads/n296x160v.pdf ; https://escholarship.mcgill.ca/concern/theses/37720g36v

►

The concept of the diffusion layer, generally used in a steady-state context, is used as a time-dependent or spacedependent unknown in the differential equations of… (more)

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The concept of the diffusion layer, generally used in a steady-state context, is used as a time-dependent or spacedependent unknown in the differential equations of diffusion. The electrochemical current which is predicted with this approximation is compared to exact mathematical treatments for a potentiostatic transient in a thin-layer cell and for a potentiostatic transient with a CE mechanism. Channel electrodes are studied using this approximation. The validity of the expressions for ordinary three-electrode cells and for four-electrode cells is proven experimentally. The mathematical description of the channel electrode is used to determine optimum operating conditions under a variety of circumstances. Conditions under which a channel electrode will not detect the product of a preceding homogeneous reaction are calculated. Employing a channel electrode under these conditions allows the performance of a homogeneous voltammetric immunoassay.

Le concept de zone de diffusion, généralement utilise dans un contexte d'état stationnaire, est employé comme paramètre temporalement et spacialement dépendant dans l'équation différentielle de diffusion. Le courant électrochimique prédit, par cette approximation, est comparé au traitement mathématique rigoureux d'un potentiel fixe dans une cellule à couche mince et d'un potentiel fixe avec un mécanisme chimique électrochimique (CE). Les électrodes de type "canal" sont étudiées selon cette approximation. La validité de ce traitement pour une cellule à trois ou quatre électrodes est prouvée expérimentalement. Le traitement mathématique de l'électrode du type "canal" est employé pour la détermination des conditions optimum d'opération au cours d'une variété de conditions expérimentales. Les conditions, pour lesquelles une électrode du type "canal" ne détectera pas le produit d'une réaction homogène précédente, sont calculées. Dans ces conditions, une électrode du type "canal" permet la réalisation d'une détermination immunologique voltamétrique homogène.

Advisors/Committee Members: Professor William C. Purdy.

Subjects/Keywords: Voltammetry.; Immunoassay.

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APA (6^th Edition):

Weber, S. G. (1979). Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. (Doctoral Dissertation). McGill University. Retrieved from https://escholarship.mcgill.ca/downloads/n296x160v.pdf ; https://escholarship.mcgill.ca/concern/theses/37720g36v

Chicago Manual of Style (16^th Edition):

Weber, Stephen G. “Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.” 1979. Doctoral Dissertation, McGill University. Accessed January 23, 2021. https://escholarship.mcgill.ca/downloads/n296x160v.pdf ; https://escholarship.mcgill.ca/concern/theses/37720g36v.

MLA Handbook (7^th Edition):

Weber, Stephen G. “Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.” 1979. Web. 23 Jan 2021.

Vancouver:

Weber SG. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. [Internet] [Doctoral dissertation]. McGill University; 1979. [cited 2021 Jan 23]. Available from: https://escholarship.mcgill.ca/downloads/n296x160v.pdf ; https://escholarship.mcgill.ca/concern/theses/37720g36v.

Council of Science Editors:

Weber SG. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. [Doctoral Dissertation]. McGill University; 1979. Available from: https://escholarship.mcgill.ca/downloads/n296x160v.pdf ; https://escholarship.mcgill.ca/concern/theses/37720g36v

Boston University

16. Levin, Benjamin Diamon. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.

Degree: PhD, Chemistry, 2013, Boston University

URL: http://hdl.handle.net/2144/14093

► Heme containing proteins and their reactivity play a central role in biological systems; they have a vast range of functions including electron transfer, catalysis, and… (more)

▼ Heme containing proteins and their reactivity play a central role in biological systems; they have a vast range of functions including electron transfer, catalysis, and respiration. Cytochromes c and heme c containing proteins have been used widely as model systems to understand how structure and dynamics lead toward function. In this thesis, a variety of biophysical methods are used to investigate two heme c containing model systems to gain insight into how redox potential and reactivity are modulated through changes in the local environment. Mitochondrial cytochrome c undergoes several pH dependent conformational rearrangements that involve different heme ligation and have associated changes in redox potential. Under basic conditions (pH greater than 8), the axial methionine (Met) residue is replaced by one of several nitrogen based ligands, usually a nearby lysine residue, and is coined the "alkaline transition". It is accompanied by a large downward shift in redox potential. The functional utility of this conformational change is not fully understood however it is strongly implicated in the signaling cascade for apoptosis. Bacterial monoheme cytochromes c exhibit similar phenomenological Met-loss behavior as a function of electrode material. In Chapter 2 we utilize Hydrogenobacter thermophilus cytochrome c552 as a model system for the assessment of redox thermodynamics and changes in redox potential associated with the Met-loss form. In Chapter 3 we extend our investigation to homologous cytochromes c. Bacterial cytochrome c peroxidases catalyze the two-electron reduction of hydrogen peroxide to water utilizing cytochrome c as an endogenous electron donor. Chapter 4 describes the first recombinant construct of the diheme Nitrosomonas europaea cytochrome c peroxidase (Ne CCP); a defining family member of constitutively active cytochrome c peroxidases. A variety of biophysical techniques were used to confirm similarity between the recombinant Ne CCP and native enzyme. Chapter 5 extends our investigation to the role of constitutively conserved glutamine and glutamic acid residues within the active site, and two conserved tryptophan residues; the first situated between hemes and the second distal to the active site. In Chapter 6, stopped flow spectroscopy is used to investigate the first intermediates of the Ne CCP catalytic mechanism.

Subjects/Keywords: Chemistry; Cyclic voltammetry; Cytochrome c; Diheme peroxidase; Protein film voltammetry

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APA (6^th Edition):

Levin, B. D. (2013). Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/14093

Chicago Manual of Style (16^th Edition):

Levin, Benjamin Diamon. “Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.” 2013. Doctoral Dissertation, Boston University. Accessed January 23, 2021. http://hdl.handle.net/2144/14093.

MLA Handbook (7^th Edition):

Levin, Benjamin Diamon. “Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.” 2013. Web. 23 Jan 2021.

Vancouver:

Levin BD. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. [Internet] [Doctoral dissertation]. Boston University; 2013. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/2144/14093.

Council of Science Editors:

Levin BD. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. [Doctoral Dissertation]. Boston University; 2013. Available from: http://hdl.handle.net/2144/14093

University of South Carolina

17. Holmes, Jordan. Frontiers in Fast Voltammetry: Novel Analytes and Applications.

Degree: PhD, Chemistry and Biochemistry, 2019, University of South Carolina

URL: https://scholarcommons.sc.edu/etd/5536

► Electrochemical sensors are beneficial towards the development and advancement of monitoring devices. As this type of technology progresses, so does our ability to create… (more)

▼ Electrochemical sensors are beneficial towards the development and advancement of monitoring devices. As this type of technology progresses, so does our ability to create state-of-the-art sensing strategies to probe environmental and biological systems at the source. In the environment, it is essential to monitor particularly harmful contaminants like trace metals in order to better mitigate risk. Additionally, biological molecules are often times challenging to measure because matrices are complex and difficult to probe; Recent advancements in chemical ex vivo and in vivo sensing platforms have offered insight into physiological processes. The brain in particular requires a sophisticated, implantable sensor as biomarkers from the periphery do not reflect brain concentrations. The overarching goal of this dissertation is to develop electrochemical sensing strategies to measure molecules that are chemically elusive in the environment and in the brain using a powerful electrochemical technique called fast-scan cyclic voltammetry (FSCV). FSCV offers selective and sensitive measurements in real-time on an electrode small enough to probe systems without perturbation or eliciting an immune response. While traditionally employed to measure dopamine neurotransmission in vivo, here we expand the scope of FSCV to explore novel analytes and model systems, including those beyond the brain. First, we discuss the significance of on-site, in situ and real-time analysis for trace metal monitoring in dynamic environmental systems. We introduce our approach using ionophore-grafted carbon fiber microelectrodes (CFM) to selectively detect Cu(II) metal ions and characterize the Cu(II)-ionophore grafted CFM interface. Second, we explore the functionality of human induced pluripotent stem cells derived into serotonin neurons (5-HTNs) in a multifaceted voltammetric and biophysical study, finding that 5-HTNs possess in vivo chemical characteristics. We then investigate the electroactivity of glutamate, a neurotransmitter that is difficult to measure electrochemically, finding that glutamate electropolymerizes forming poly-glutamic acid (PGA) at high potentials and fast scan rates. We characterize the PGA coating and our results suggests that glutamate polymerizes in brain tissue, improving the sensitivity of sensors during in vivo analysis. Finally, we present a sensing strategy for direct, enzyme- free glutamate detection while avoiding polymerization and characterize the analytical performance of the glutamate voltammetric signature. Together, our data showcases the power of FSCV for rapid trace metal monitoring, serotonin detection in 5-HTNs, electropolymerization, and sensing of new and challenging analytes. Advisors/Committee Members: Parastoo Hashemi.

Subjects/Keywords: Chemistry; voltammetry; novel analytes; electrochemical sensors; sensors; fast-scan cyclic voltammetry

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APA (6^th Edition):

Holmes, J. (2019). Frontiers in Fast Voltammetry: Novel Analytes and Applications. (Doctoral Dissertation). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/5536

Chicago Manual of Style (16^th Edition):

Holmes, Jordan. “Frontiers in Fast Voltammetry: Novel Analytes and Applications.” 2019. Doctoral Dissertation, University of South Carolina. Accessed January 23, 2021. https://scholarcommons.sc.edu/etd/5536.

MLA Handbook (7^th Edition):

Holmes, Jordan. “Frontiers in Fast Voltammetry: Novel Analytes and Applications.” 2019. Web. 23 Jan 2021.

Vancouver:

Holmes J. Frontiers in Fast Voltammetry: Novel Analytes and Applications. [Internet] [Doctoral dissertation]. University of South Carolina; 2019. [cited 2021 Jan 23]. Available from: https://scholarcommons.sc.edu/etd/5536.

Council of Science Editors:

Holmes J. Frontiers in Fast Voltammetry: Novel Analytes and Applications. [Doctoral Dissertation]. University of South Carolina; 2019. Available from: https://scholarcommons.sc.edu/etd/5536

Universidade Federal de Sergipe

18. Ângelo Francklin Pitanga. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.

Degree: 2009, Universidade Federal de Sergipe

URL: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

►

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of… (more)

▼

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of electrode of carbon paste was modified with hemin. The tests were carried out in solution tampão Britton-Robinson (BR) in pH 2, with an electrode compounded by 50% of carbon past and 50% of hemin, for having the best analytical answer to the compound in question. Based on the electrochemical parameters that were taken of the technique cyclic voltammetry, differential pulse and of the square wave, it was possible diagnostic some information that was connected to the reaction mechanism such as: the reversibility of the process, the existence or not of adsorption process and the number of electrons that is involved in the electrochemical reactions. The resulted said that the reaction of ketoconazole reduction is irreversible, with one definite peaks at 1,44V device phenomenon of reduction do CTZ. The analytical methodology that was developed is fast, sensible and precise, to routine analysis on pills of CTZ. The analytic curve was linear in the concentration area between 1,8 and 5,5.106 mol/L, with detection limit 1,7.107 mol/L and quantification limit in 5,6.107 mol/L.

Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de eletrodo de pasta de carbono modificado com hemina. Os experimentos foram realizados em solução tampão Britton-Robinson (BR) no pH 2, com uma composição do eletrodo de 50% de pasta de carbono e 50% de hemina, pois apresenta a melhor resposta analítica para o referido composto. Com base nos parâmetros eletroquímicos extraídos das técnicas de voltametria cíclica, de pulso diferencial e de onda quadrada, foi possível diagnosticar algumas informações relacionadas com o mecanismo da reação como: a reversibilidade do processo, a presença ou não de processos de adsorção e também o número de elétrons envolvidos nas reações eletroquímicas. Os resultados indicaram que a reação de redução do cetoconazol é irreversível com um pico a 1,44V devido ao fenômeno de redução de CTZ. A metodologia analítica desenvolvida é rápida, sensível e precisa para a análise de rotina de comprimidos de CTZ. A curva analítica foi linear na região de concentração entre 1,8 a 5,5.106 mol/L, com limite de detecção de 1,7.107mol/L e com limite de quantificação de 5,6.107 mol/L.

Advisors/Committee Members: Maria de Lara Palmeira Macedo Arguelho.

Subjects/Keywords: hemina; ketoconazole; QUIMICA; voltammetry; voltametria; hemin; Cetoconazol

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APA (6^th Edition):

Pitanga, �. F. (2009). Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. (Thesis). Universidade Federal de Sergipe. Retrieved from http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

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):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Thesis, Universidade Federal de Sergipe. Accessed January 23, 2021. http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209.

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

MLA Handbook (7^th Edition):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Web. 23 Jan 2021.

Vancouver:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2021 Jan 23]. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209.

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

Council of Science Editors:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

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

Universidade Federal de Sergipe

19. Ângelo Francklin Pitanga. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.

Degree: 2009, Universidade Federal de Sergipe

URL: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

►

Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de… (more)

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Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de eletrodo de pasta de carbono modificado com hemina. Os experimentos foram realizados em solução tampão Britton-Robinson (BR) no pH 2, com uma composição do eletrodo de 50% de pasta de carbono e 50% de hemina, pois apresenta a melhor resposta analítica para o referido composto. Com base nos parâmetros eletroquímicos extraídos das técnicas de voltametria cíclica, de pulso diferencial e de onda quadrada, foi possível diagnosticar algumas informações relacionadas com o mecanismo da reação como: a reversibilidade do processo, a presença ou não de processos de adsorção e também o número de elétrons envolvidos nas reações eletroquímicas. Os resultados indicaram que a reação de redução do cetoconazol é irreversível com um pico a 1,44V devido ao fenômeno de redução de CTZ. A metodologia analítica desenvolvida é rápida, sensível e precisa para a análise de rotina de comprimidos de CTZ. A curva analítica foi linear na região de concentração entre 1,8 a 5,5.106 mol/L, com limite de detecção de 1,7.107mol/L e com limite de quantificação de 5,6.107 mol/L.

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of electrode of carbon paste was modified with hemin. The tests were carried out in solution tampão Britton-Robinson (BR) in pH 2, with an electrode compounded by 50% of carbon past and 50% of hemin, for having the best analytical answer to the compound in question. Based on the electrochemical parameters that were taken of the technique cyclic voltammetry, differential pulse and of the square wave, it was possible diagnostic some information that was connected to the reaction mechanism such as: the reversibility of the process, the existence or not of adsorption process and the number of electrons that is involved in the electrochemical reactions. The resulted said that the reaction of ketoconazole reduction is irreversible, with one definite peaks at 1,44V device phenomenon of reduction do CTZ. The analytical methodology that was developed is fast, sensible and precise, to routine analysis on pills of CTZ. The analytic curve was linear in the concentration area between 1,8 and 5,5.106 mol/L, with detection limit 1,7.107 mol/L and quantification limit in 5,6.107 mol/L.

Advisors/Committee Members: Maria de Lara Palmeira Macedo Arguelho.

Subjects/Keywords: Cetoconazol; hemina; voltametria; QUIMICA; ketoconazole; hemin; voltammetry

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APA (6^th Edition):

Pitanga, �. F. (2009). Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. (Thesis). Universidade Federal de Sergipe. Retrieved from http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

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):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Thesis, Universidade Federal de Sergipe. Accessed January 23, 2021. http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209.

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

MLA Handbook (7^th Edition):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Web. 23 Jan 2021.

Vancouver:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2021 Jan 23]. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209.

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

Council of Science Editors:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

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

Deakin University

20. Luscombe, Darryl L. Studies with voltammetric microdisk electrodes.

Degree: 1991, Deakin University

URL: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

[No Abstract]

Subjects/Keywords: voltammetry; electrodes; microdisk

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APA (6^th Edition):

Luscombe, D. L. (1991). Studies with voltammetric microdisk electrodes. (Thesis). Deakin University. Retrieved from http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

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):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Thesis, Deakin University. Accessed January 23, 2021. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433.

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

MLA Handbook (7^th Edition):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Web. 23 Jan 2021.

Vancouver:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Internet] [Thesis]. Deakin University; 1991. [cited 2021 Jan 23]. Available from: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433.

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

Council of Science Editors:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Thesis]. Deakin University; 1991. Available from: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

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

21. Leena, R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.

Degree: Applied Chemistry, 2012, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/3829

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Voltammetric methods are applicable for the determination of a wide variety of both organic and inorganic species. Its features are compact equipment, simple sample preparation,… (more)

Subjects/Keywords: Electrodics; electrogravimetry; coulometry; potentiometry; voltammetry; buffer solutions

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APA (6^th Edition):

Leena, R. (2012). Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/3829

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):

Leena, R. “Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.” 2012. Thesis, Cochin University of Science and Technology. Accessed January 23, 2021. http://dyuthi.cusat.ac.in/purl/3829.

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

MLA Handbook (7^th Edition):

Leena, R. “Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.” 2012. Web. 23 Jan 2021.

Vancouver:

Leena R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. [Internet] [Thesis]. Cochin University of Science and Technology; 2012. [cited 2021 Jan 23]. Available from: http://dyuthi.cusat.ac.in/purl/3829.

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

Council of Science Editors:

Leena R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. [Thesis]. Cochin University of Science and Technology; 2012. Available from: http://dyuthi.cusat.ac.in/purl/3829

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

Rochester Institute of Technology

22. Wengenack, Nancy L. Design and testing of a computer-controlled square wave voltammetry instrument.

Degree: School of Chemistry and Materials Science (COS), 1987, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/3721

► Square Wave Voltammetry is rapidly becoming the most popular and versatile electrochemical technique used in research laboratories today. A discussion of electroanalytical techniques, which are… (more)

Subjects/Keywords: Voltammetry; Electrochemical analysis

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APA (6^th Edition):

Wengenack, N. L. (1987). Design and testing of a computer-controlled square wave voltammetry instrument. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/3721

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):

Wengenack, Nancy L. “Design and testing of a computer-controlled square wave voltammetry instrument.” 1987. Thesis, Rochester Institute of Technology. Accessed January 23, 2021. https://scholarworks.rit.edu/theses/3721.

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

MLA Handbook (7^th Edition):

Wengenack, Nancy L. “Design and testing of a computer-controlled square wave voltammetry instrument.” 1987. Web. 23 Jan 2021.

Vancouver:

Wengenack NL. Design and testing of a computer-controlled square wave voltammetry instrument. [Internet] [Thesis]. Rochester Institute of Technology; 1987. [cited 2021 Jan 23]. Available from: https://scholarworks.rit.edu/theses/3721.

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

Council of Science Editors:

Wengenack NL. Design and testing of a computer-controlled square wave voltammetry instrument. [Thesis]. Rochester Institute of Technology; 1987. Available from: https://scholarworks.rit.edu/theses/3721

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

Addis Ababa University

23. Belete, Tesfaw. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/467

► The cyclic voltammetric study of cadmium(II) -aspartic acid system at pH 8 was undertaken. Through a series of diagnostic criteria, it was shown that the… (more)

Subjects/Keywords: cyclic voltammetry (CV); CE mechanism, aspartic acid

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APA (6^th Edition):

Belete, T. (2012). Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/467

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):

Belete, Tesfaw. “Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .” 2012. Thesis, Addis Ababa University. Accessed January 23, 2021. http://etd.aau.edu.et/dspace/handle/123456789/467.

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

MLA Handbook (7^th Edition):

Belete, Tesfaw. “Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .” 2012. Web. 23 Jan 2021.

Vancouver:

Belete T. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Jan 23]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/467.

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

Council of Science Editors:

Belete T. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/467

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

Addis Ababa University

24. Alemayehu, Yifru. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/479

► A glassy carbon electrode (GCE) is modified with PEDOT and its application for differential pulse voltammetry (DPV) detection of diazinon ,DZN ( organophosphate pesticide) is… (more)

Subjects/Keywords: GCE; PEDOT; differential pulse voltammetry; Diazinon

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APA (6^th Edition):

Alemayehu, Y. (2012). Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/479

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):

Alemayehu, Yifru. “Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .” 2012. Thesis, Addis Ababa University. Accessed January 23, 2021. http://etd.aau.edu.et/dspace/handle/123456789/479.

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

MLA Handbook (7^th Edition):

Alemayehu, Yifru. “Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .” 2012. Web. 23 Jan 2021.

Vancouver:

Alemayehu Y. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Jan 23]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/479.

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

Council of Science Editors:

Alemayehu Y. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/479

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

Addis Ababa University

25. Asfaw, Negash. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/503

► Electrochemical oxidation of catechol has been studied in the presence of imidazole as nucleophile in aqueous solution, using cyclic voltammetry. The results indicate the participation… (more)

Subjects/Keywords: catechol and imidazole; cyclic voltammetry; EC mechanism

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APA (6^th Edition):

Asfaw, N. (2012). Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/503

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):

Asfaw, Negash. “Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .” 2012. Thesis, Addis Ababa University. Accessed January 23, 2021. http://etd.aau.edu.et/dspace/handle/123456789/503.

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

MLA Handbook (7^th Edition):

Asfaw, Negash. “Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .” 2012. Web. 23 Jan 2021.

Vancouver:

Asfaw N. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Jan 23]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/503.

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

Council of Science Editors:

Asfaw N. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/503

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

26. Tatin, Arnaud. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.

Degree: Docteur es, Chimie. Électrochimie moléculaire et biologique, 2016, Sorbonne Paris Cité

URL: http://www.theses.fr/2016USPCC164

►

L'énergie électrique (de préférence d’origine renouvelable) peut être stockée dans des liaisons chimiques grâce à un électrolyseur approprié. Les réactions typiques comprennent la production d'hydrogène,… (more)

▼

L'énergie électrique (de préférence d’origine renouvelable) peut être stockée dans des liaisons chimiques grâce à un électrolyseur approprié. Les réactions typiques comprennent la production d'hydrogène, la production d'hydrocarbures et la synthèse d'ammoniac. Ces électrocarburants permettent de faciliter l'intégration de sources d'énergie renouvelables dans le mix de production électrique. Ils sont compatibles avec l'infrastructure industrielle actuelle et la chaîne d'approvisionnement et peuvent être stockés facilement. En outre, ce procédé est à la fois un moyen de stocker l'électricité dans des liaisons chimiques (vecteurs énergétiques) et une technique de synthèse de composés chimiques à partir de matières premières comme le CO2 plutôt que de ressources fossiles.La thèse s’intéresse au développement de nouveaux catalyseurs moléculaires pour la conversion sélective du CO2 en CO en utilisant uniquement des matériaux abondants sur Terre, comme les porphyrines de Fer. Tout d'abord, les tentatives pour obtenir de nouveaux catalyseurs avec divers substituants sont détaillées. Une fois qu'un catalyseur hydrosoluble actif est identifié, une évaluation des performances est réalisée en utilisant des techniques électrochimiques telles que la voltammétrie cyclique

Electrical energy (preferably issued from renewable sources) can be stored in chemical bonds thanks to an appropriate electrolyzer. Typical reactions include hydrogen generation, the production of hydrocarbons and oxygenates, and ammonia synthesis. Such electrofuels supplement the integration of renewable energy sources in the electrical production mix; they are compatible with the current industrial infrastructure and supply chain, while they can be stored easily. Besides, they may be used either as a means to store the electricity in the chemical bonds of high-energy-content molecules or as various feedstocks to manufacture high value compounds.The thesis focused on the development of new molecular catalysts for the selective CO2-to-CO conversion in water using only earth-abundant materials, namely iron-based porphyrin derivatives. First, successful and unsuccessful attempts to derive new catalysts with various substituents are reviewed. Once an active water-soluble catalyst is identified, a performance assessment is completed using electrochemical techniques such as cyclic voltammetry investigations.Then, the immobilization of said catalysts onto the electrode surface is discussed. Once a robust integration in the catalytic film is secured, the coupling with a heterogeneous water-oxidation catalyst can be considered. The subsequent assembly of a whole electrolysis cell is reported, where a cobalt-based film was picked for the anode. Finally, economic perspectives provide a clear, rational basis for future optimization of the device

Advisors/Committee Members: Robert, Marc (thesis director).

Subjects/Keywords: Électrocarburants; Voltammétrie cyclique; Electrofuels; Cyclic voltammetry

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

APA (6^th Edition):

Tatin, A. (2016). Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. (Doctoral Dissertation). Sorbonne Paris Cité. Retrieved from http://www.theses.fr/2016USPCC164

Chicago Manual of Style (16^th Edition):

Tatin, Arnaud. “Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.” 2016. Doctoral Dissertation, Sorbonne Paris Cité. Accessed January 23, 2021. http://www.theses.fr/2016USPCC164.

MLA Handbook (7^th Edition):

Tatin, Arnaud. “Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.” 2016. Web. 23 Jan 2021.

Vancouver:

Tatin A. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. [Internet] [Doctoral dissertation]. Sorbonne Paris Cité; 2016. [cited 2021 Jan 23]. Available from: http://www.theses.fr/2016USPCC164.

Council of Science Editors:

Tatin A. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. [Doctoral Dissertation]. Sorbonne Paris Cité; 2016. Available from: http://www.theses.fr/2016USPCC164

27. 張朝富. Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ.

Degree: 博士(工学), 2014, University of Fukui / 福井大学

URL: http://hdl.handle.net/10098/8239

► Ultramicroelectrode now plays a significant role in the study of the mechanism and kinetics of fast electron transfer under the steady-state condition because of the… (more)

▼ Ultramicroelectrode now plays a significant role in the study of the mechanism and kinetics of fast electron transfer under the steady-state condition because of the existence of high mass transport. On the other hand, excess electrolyte is necessary in order to keep electroneutrality. But electrolyte often makes the reactions complicated because of the electric neutrality step. Fortunately microelectrode techniques can affbrd to measure current voltage curves with out electrolyte. However, the experimental data reported are not consistent, and vary from researchers to researchers. The wide variation by microelectrode techniques may be ascribed to instability or an irreproducibility of microelectrodes, delay of a potentiostat at fast measurements, uncompensated resistance, and/or participation of capacitive currents. A strategy of overcoming these complications is to establish a commonly available fabrication technique. So the aim of this thesis deals with fabrication of a number of endurable nanoelectrodes at high success rate with minimal artifacts Thus the fabricated electrodes are applied to fast electron transfer kinetics and electrode reaction in low ionic strength solutions under the steady-state condition. Consequently, the microelectrodes are predicted to provide reliable electrokinetic data. Introduction of this thesis is devoted to the overview, properties and fabrication of nanoelectrodes. The experimental procedures are described in chapter 2. The following chapters are devoted to fabrication of glass-coated nanoelectrodes (Chapter 3), fast electron transfer reactions by steady-state microelectrode techniques and fast scan voltammetry (Chapter 4), and voltammetry of two-electron transfer reaction in low ionic strength solutions(Chapter 5), Conclusion is given in Chapter 6. Chapter 3 deals with fabrication of glass-coated electrodes with nano- and micrometer size by means of dissolutionwith HF.A key of the process was to make a thin glass film on the Pttip and toe xpose the Ptsurface by HF dissolving. 50 electrodes thus fabricated had diameters ranging from l nm to 5 μm, estimated from the steady-state current of diffUsion-controlled current of ferrocene in acetonitrile and ferroceny lderivative in aqueous solution. They exhibited reproducible and stable voltammograms without hysteresis, withstanding 6 hours,continuous use and l5 hours' iterative processes of heat and voltammetry. Chapter 4 is devoted to fast electron transfer reaction by steady-state microelectrode. Rate constants of fast electron transfer reactions of six species, which have been determined equivocally by fast voltammetry, are attempted to be evaluated with steady-state voltammetric measurements at ultramicroelectrodes. This work is motivated by the experimental feasibility of high current density at ultramicroelectrodes without effbcts of capacitive currents or solution resistance. By increasing mass transport, electron transfer becomes the rate determining step,and then potential shift will be found. Unfortunately no potential shift…

Subjects/Keywords: Steady-state Voltammetry; Glass-coated Nanoelectrodes

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

APA (6^th Edition):

朝富, �. (2014). Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ. (Thesis). University of Fukui / 福井大学. Retrieved from http://hdl.handle.net/10098/8239

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):

朝富, 張. “Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ.” 2014. Thesis, University of Fukui / 福井大学. Accessed January 23, 2021. http://hdl.handle.net/10098/8239.

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

MLA Handbook (7^th Edition):

朝富, 張. “Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ.” 2014. Web. 23 Jan 2021.

Vancouver:

朝富 �. Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ. [Internet] [Thesis]. University of Fukui / 福井大学; 2014. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10098/8239.

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

Council of Science Editors:

朝富 �. Steady-state Voltammetry at Glass-coated Nanoelectrodes : ガラスで被覆したナノ電極における定常状態のボルタンメトリ. [Thesis]. University of Fukui / 福井大学; 2014. Available from: http://hdl.handle.net/10098/8239

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

Deakin University

28. Luscombe, Darryl L. Studies with voltammetric microdisk electrodes.

Degree: 1991, Deakin University

URL: http://hdl.handle.net/10536/DRO/DU:30023314

[No Abstract]

Subjects/Keywords: Voltammetry; Electrodes - Materials

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

APA (6^th Edition):

Luscombe, D. L. (1991). Studies with voltammetric microdisk electrodes. (Thesis). Deakin University. Retrieved from http://hdl.handle.net/10536/DRO/DU:30023314

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):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Thesis, Deakin University. Accessed January 23, 2021. http://hdl.handle.net/10536/DRO/DU:30023314.

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

MLA Handbook (7^th Edition):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Web. 23 Jan 2021.

Vancouver:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Internet] [Thesis]. Deakin University; 1991. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10536/DRO/DU:30023314.

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

Council of Science Editors:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Thesis]. Deakin University; 1991. Available from: http://hdl.handle.net/10536/DRO/DU:30023314

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

Deakin University

29. Tait, Russell John. Development and application of a microelectrode based scanning voltammetric detector.

Degree: 1991, Deakin University

URL: http://hdl.handle.net/10536/DRO/DU:30023315

► A large part of the work presented in this thesis describes the development and use of a novel electrochemical detector designed to allow the electrochemical… (more)

Subjects/Keywords: Voltammetry; Microelectrodes; Dithranol

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

APA (6^th Edition):

Tait, R. J. (1991). Development and application of a microelectrode based scanning voltammetric detector. (Thesis). Deakin University. Retrieved from http://hdl.handle.net/10536/DRO/DU:30023315

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):

Tait, Russell John. “Development and application of a microelectrode based scanning voltammetric detector.” 1991. Thesis, Deakin University. Accessed January 23, 2021. http://hdl.handle.net/10536/DRO/DU:30023315.

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

MLA Handbook (7^th Edition):

Tait, Russell John. “Development and application of a microelectrode based scanning voltammetric detector.” 1991. Web. 23 Jan 2021.

Vancouver:

Tait RJ. Development and application of a microelectrode based scanning voltammetric detector. [Internet] [Thesis]. Deakin University; 1991. [cited 2021 Jan 23]. Available from: http://hdl.handle.net/10536/DRO/DU:30023315.

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

Council of Science Editors:

Tait RJ. Development and application of a microelectrode based scanning voltammetric detector. [Thesis]. Deakin University; 1991. Available from: http://hdl.handle.net/10536/DRO/DU:30023315

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

Brigham Young University

30. Pan, Yining. Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells.

Degree: MS, 2013, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4523&context=etd

► Glucose and other carbohydrates are some of the most abundant renewable energy sources in the world. The oxidation of carbohydrates in a fuel cell… (more)

Subjects/Keywords: viologen; electropolymerization; fuel cell; voltammetry; Chemical Engineering

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

APA (6^th Edition):

Pan, Y. (2013). Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4523&context=etd

Chicago Manual of Style (16^th Edition):

Pan, Yining. “Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells.” 2013. Masters Thesis, Brigham Young University. Accessed January 23, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4523&context=etd.

MLA Handbook (7^th Edition):

Pan, Yining. “Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells.” 2013. Web. 23 Jan 2021.

Vancouver:

Pan Y. Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells. [Internet] [Masters thesis]. Brigham Young University; 2013. [cited 2021 Jan 23]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4523&context=etd.

Council of Science Editors:

Pan Y. Immobilized Viologen Polymer for Use in Direct Carbohydrate Fuel Cells. [Masters Thesis]. Brigham Young University; 2013. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=4523&context=etd

Open Access Theses and Dissertations