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You searched for +publisher:"University of St. Andrews" +contributor:("Morris, Russell Edward"). Showing records 1 – 3 of 3 total matches.

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University of St. Andrews

1. McPherson, Matthew Joseph. Control of water and toxic gas adsorption in metal-organic frameworks .

Degree: 2016, University of St. Andrews

The research presented in this thesis aims to determine the effectiveness of the uptake of toxic gases by several MOFs for future use in gas-mask cartridges, and to attempt to compensate for any deficiencies they show in “real-world” conditions. The main findings of this thesis confirm that MOFs are suitable candidates for the use in respirator cartridge materials and provide high capacity for adsorption of toxic gases like ammonia and STAM-1 in particular showed an impressive improvement in humid conditions, which normally decrease the performance of MOFs made from the same materials, such as HKUST-1. STAM-1’s improved performance in humid conditions is attributed to the structural shift it displays upon dehydration and rehydration and this was shown to be the case in a structural analogue, CuEtOip, which was synthesised in the author’s research group. This analogue was analysed using a combination of single crystal XRD and solid state MAS-NMR, both of which showed the structural change occurring and displays similar gas sorption behaviours, suggesting that this mechanism is the source of STAM-1’s improved performance in humid conditions. This thesis also examines the “Armoured MOF” process and investigates the transferability of the process of deposition of mesoporous silica onto MOFs with vastly different properties and synthetic methods compared to those published in the original publication. Alongside this, attempts to protect MOFs using mesoporous silicates were investigated for their viability. Advisors/Committee Members: Morris, Russell Edward (advisor).

Subjects/Keywords: Chemistry; Metal-organic framework; MOF; Gas separation; Gas storage; Porous solids; STAM-1

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

APA (6th Edition):

McPherson, M. J. (2016). Control of water and toxic gas adsorption in metal-organic frameworks . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/16489

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

Chicago Manual of Style (16th Edition):

McPherson, Matthew Joseph. “Control of water and toxic gas adsorption in metal-organic frameworks .” 2016. Thesis, University of St. Andrews. Accessed July 10, 2020. http://hdl.handle.net/10023/16489.

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

MLA Handbook (7th Edition):

McPherson, Matthew Joseph. “Control of water and toxic gas adsorption in metal-organic frameworks .” 2016. Web. 10 Jul 2020.

Vancouver:

McPherson MJ. Control of water and toxic gas adsorption in metal-organic frameworks . [Internet] [Thesis]. University of St. Andrews; 2016. [cited 2020 Jul 10]. Available from: http://hdl.handle.net/10023/16489.

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

Council of Science Editors:

McPherson MJ. Control of water and toxic gas adsorption in metal-organic frameworks . [Thesis]. University of St. Andrews; 2016. Available from: http://hdl.handle.net/10023/16489

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


University of St. Andrews

2. Cattaneo, Damiano. Novel nitric oxide delivery systems for biomedical applications .

Degree: 2015, University of St. Andrews

The aim of the research presented in this thesis is to investigate and develop novel nitric oxide (NO) delivery systems, specifically designed for application in medical areas. The initial work has focused on utilising metal organic frameworks (MOFs) as a delivery system for this radical gas, NO. Due to their high porosity, high thermal stability and the presence of coordinated unsaturated metal sites (CUSs) when fully activated, the CPO-27 (Coordination Polymer of Oslo) family of MOFs has been selected as a suitable host framework. CPO-27 (Ni), CPO-27 (Mg) and CPO-27 (Zn) have been prepared using reflux and room temperature processes without recourse to the use of any toxic or harmful solvents. The resulting products are characterised by powder XRD (X-ray diffraction) and SEM (Scanning electron microscopy), and their NO adsorption, storage and release properties are reported. The results indicate that the crystallinity, particle size and NO adsorption, storage and release performance are comparable to those of equivalent samples synthesised via traditional solvothermal methods, paving the way for a more easily scalable and environmentally friendly synthetic procedure for these types of MOF. Depending on which metal is employed; the NO uptake, storage and release varies, the more toxic nickel based framework shows enhanced performance in terms of concentration and duration of NO released against either the magnesium or zinc counterparts. In order therefore to reduce the risk of toxicity whilst retaining good performance, Ni (II) ions were doped into the 3D framework of CPO-27 (Mg) and CPO-27 (Zn) using novel water-based reflux and room temperature crystallization methods. Several characterization techniques strongly support the effective incorporation of Ni (II) ions into the 3D framework. Nitric oxide (NO) adsorption/release data, as well as in vitro tests demonstrate that NO dosage and biological response can be tuned via the Ni doping process allowing enhanced performance without the high toxicity of pure Ni MOFs. Such materials would be extremely advantageous and more applicable for use in medical fields. NONOates and other NO-complexes have also been investigated as alternative NO delivery systems. This study has focused on developing NO-drug complexes using a variety of different compounds commonly used by clinicians, namely the antiseptic (chlorhexidine, CHx), the antibiotic (ciprofloxacin) and diuretic (furosemide). A unique high pressure NO loading methodology has been developed to coordinate nitric oxide to these drug molecules and their NO release performance has been evaluated. The resulting NO-drug complexes are characterised using a series of spectroscopic techniques and the collected data highlights that the radical gas coordinates with the secondary amine groups present in the drug molecules. The interaction between the amine group and the gas is reversible; in fact the release of NO from these complexes can be triggered using water (11% RH) and/or UV-light. In addition, chlorhexidine has been… Advisors/Committee Members: Morris, Russell Edward (advisor).

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

APA (6th Edition):

Cattaneo, D. (2015). Novel nitric oxide delivery systems for biomedical applications . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/11965

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

Chicago Manual of Style (16th Edition):

Cattaneo, Damiano. “Novel nitric oxide delivery systems for biomedical applications .” 2015. Thesis, University of St. Andrews. Accessed July 10, 2020. http://hdl.handle.net/10023/11965.

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

MLA Handbook (7th Edition):

Cattaneo, Damiano. “Novel nitric oxide delivery systems for biomedical applications .” 2015. Web. 10 Jul 2020.

Vancouver:

Cattaneo D. Novel nitric oxide delivery systems for biomedical applications . [Internet] [Thesis]. University of St. Andrews; 2015. [cited 2020 Jul 10]. Available from: http://hdl.handle.net/10023/11965.

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

Council of Science Editors:

Cattaneo D. Novel nitric oxide delivery systems for biomedical applications . [Thesis]. University of St. Andrews; 2015. Available from: http://hdl.handle.net/10023/11965

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


University of St. Andrews

3. McHugh, Lauren Nicole. Toxic gas adsorption and water stability in metal-organic frameworks .

Degree: 2019, University of St. Andrews

This thesis largely focuses on the development of water stable metal-organic frameworks (MOFs) for the removal of toxic industrial chemicals (TICs) from airstreams. The aim of the research is to investigate the water stability and adsorptive properties of a series of copper MOFs for potential use inside a filter in future air purification systems. Chapter 4 introduces a member of the STAM series of MOFs: STAM-17-OEt, which has formed the main focus of the project. STAM-17-OEt displays exceptional hydrolytic stability and ammonia adsorption properties that are in part explained by the new crumple zone mechanism shown by the material. The other members of the STAM series of MOFs are presented in chapter 5, where the long-term water stability first seen in STAM-17-OEt is shown to be present for other members of the series. Ammonia adsorption testing provides promising results, with a clear linear adsorption trend visible across the series, and though the materials remove hydrogen cyanide from an airstream, testing does not show a clear trend. Chapter 6 describes the synthesis of MOF-activated carbon composite materials, where selected STAM MOFs are grown inside BPL activated carbon at a series of loadings. The composites allow a typically powdered MOF sample to be manufactured into a form that may potentially be used inside a filter and by altering the loading of MOF within the composites, the materials may be tailored to remove a broader range of contaminants than the individual components alone. Chapter 7 discusses the synthesis and characterisation of two new copper frameworks, where STAM-NMe2 is a member of the STAM series with a nitrogen-containing side chain and copper-1,3-bis(4-carboxyphenyl)-5-ethoxybenzene forms as a ‘layered coordination framework’ and is not related to the STAM series. Advisors/Committee Members: Morris, Russell Edward (advisor).

Subjects/Keywords: Metal-organic frameworks; Porous materials

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

APA (6th Edition):

McHugh, L. N. (2019). Toxic gas adsorption and water stability in metal-organic frameworks . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/18848

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

Chicago Manual of Style (16th Edition):

McHugh, Lauren Nicole. “Toxic gas adsorption and water stability in metal-organic frameworks .” 2019. Thesis, University of St. Andrews. Accessed July 10, 2020. http://hdl.handle.net/10023/18848.

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

MLA Handbook (7th Edition):

McHugh, Lauren Nicole. “Toxic gas adsorption and water stability in metal-organic frameworks .” 2019. Web. 10 Jul 2020.

Vancouver:

McHugh LN. Toxic gas adsorption and water stability in metal-organic frameworks . [Internet] [Thesis]. University of St. Andrews; 2019. [cited 2020 Jul 10]. Available from: http://hdl.handle.net/10023/18848.

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

Council of Science Editors:

McHugh LN. Toxic gas adsorption and water stability in metal-organic frameworks . [Thesis]. University of St. Andrews; 2019. Available from: http://hdl.handle.net/10023/18848

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

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