Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Nerve agents"”.
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Development of a portable miniaturised capillary electrophoresis system for chemical nerve agents detection
… complete solution to analysis suspected chemical agents accurately and rapidly at a forensic site. In order to reduce the consumed time of sending the sample to the forensic lab, this research aim to provide the real-time data for mobile forensic analysis. The system is ideally portable and …
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Metal-Ion Catalyzed Alcoholysis Based Disclosure Solution for the Detection of CW Nerve Agents on Sensitive Materials for Spray and Wipe-Based Applications
Chemical warfare agents (CWA) are defined by the Chemical Weapons Convention as "any chemical which, through its chemical effect on living processes, may cause death, temporary loss of performance, or permanent injury to people and animals." Chemical warfare agents, such as the nerve agents and …
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Enzyme and Directed Evolution Technologies For Nerve Agent Neutralisation
… insecticides and the possibility of using OPs nerve agents (NA) against civilian populations, the research and development of enzymes involved in the biotransformation and detoxification of OPs has attracted considerable attention in recent years. A number of enzymes have been identified that …
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Next generation of electrospun textiles for chemical and biological protection and air filtration
… polyhydroxamic acid, which can decompose OP nerve agents, and antimicrobial polycation, poly (N-vinylguanidine), were synthesized and LbL-assembled onto electrospun fibers to achieve multifunctional coatings. The capability of these functionalized fabrics to detoxify representative chemical …
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Electronic detection of molecules on the exterior and molecular transport through the interior of single walled carbon nanotubes
… the SWNT exterior for reversible detection of nerve agents. Vast majority of the SWNT sensors exhibit irreversible sensor responses. The irreversibility is a major cause of sensor failure and also limits long term operation of the sensor. We show for the first time 1) the …
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Preparation and applications of catalytic magnetic nanoparticles
… OP pesticides in groundwater system and chemical nerve agents on the battle field. Homogeneous or micellar decomposition systems with various nucleophiles improve reaction rates significantly without affording the recovery and reuse of the nucleophiles. This research focuses on developing …
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Interactions between anticholinesterases in an in vitro central nervous system preparation
… (e.g. paraoxon) and also as chemical warfare agents (nerve agents, e.g. sarin). These compounds rapidly inhibit the enzyme acetylcholinesterase (AChE), causing overstimulation within the cholinergic nervous system. If left untreated, this can be fatal. Current medical countermeasures to nerve …
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The Study of Zirconium Hydroxide and Zirconium (IV) Metal-Organic Frameworks as Reactive Substrates for the Decomposition of Chemical Warfare Agents
<p>Nerve agents have been described by the Center for Disease Control and Prevention to be the most toxic and rapidly acting of chemical warfare agents. The present study investigates the efficacy of zirconium hydroxide, Zr(OH)<sub>4</sub>, and Zr(IV) Metal-Organic Frameworks (MOFs) in the uptake …
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ANALYTICAL APPLICATIONS OF SURFACE-MODIFIED FUSED SILICA CAPILLARIES
… modifying a fiber optic capillary to detect nerve agents by immobilizing fluorescent labeled acetylcholinesterase (AChE) to the surface and using evanescent waves to monitor the enzyme activity. The hypotheses for the chemical sensor are that the improved enzyme activity of a recombinant …
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ANALYTICAL APPLICATIONS OF SURFACE-MODIFIED FUSED SILICA CAPILLARIES
… modifying a fiber optic capillary to detect nerve agents by immobilizing fluorescent labeled acetylcholinesterase (AChE) to the surface and using evanescent waves to monitor the enzyme activity. The hypotheses for the chemical sensor are that the improved enzyme activity of a recombinant …
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Computational Investigations at the Gas-Surface Interface: Organic Surface Oxidation and Hydrolysis of Chemical Warfare Agents and Simulants
… the fundamentals of the hydrolysis mechanism for nerve agents by a catalyst of interest in the development of filtration materials for chemical-warfare-agent defense. By following the gas-surface reaction pathway of the nerve agent Sarin on the Lindqvist polyoxoniobate Cs8Nb6O19, we determined …
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SYNTHESIS OF CHROMO FLUOROGENIC SENSORS FOR MOLECULAR RECOGNITION
… a series of molecule in order to recognize nerve agent simulant like DMMP (dimethylmethyphosphonate) by using firstly simple molecules as oximes that is well known are used in the detoxification therapy after nerve agents exposure. Unfortunately the change of the behaviour of these molecule …
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Intrinsic and Extrinsic Catalysis in Zirconium-based Metal-Organic Frameworks
… work. First, the hydrolysis of organophosphate nerve agents by MOFs acting as novel catalysts will be introduced. The mechanism of reaction, as well as previous work in this field will be discussed. Finally, water oxidation as part of artificial photosynthesis through incorporated molecular …
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Functional gel for directed molecular transport and sensor applications
… substance that is widely used in pesticides and nerve agents and is usually present in trace amounts. As the organophosphate are usually analyzed with FTIR characterization, the surface-enhanced infrared adsorption nanoantenna chip, which can be designed to selectively enhanced the signature …
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Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins
… pharmaceutical pollution and chemical warfare agents (CWAs). To date the nerve agent, <em>O</em>-ethyl <em>S</em>-[2-(diisopropylamino)ethyl] methylphosphonothioate), also known as VX, is the world’s most lethal chemical substance. Some of these deadly nerve agents have been employed in various …
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Uptake and Reaction Mechanisms of CO, H2O, and the Nerve Agent Simulant, DMMP with Single Atom-Modified Zirconium-based Metal-Organic Frameworks
… be more effective sorbents for compounds such as nerve agents than activated carbon owing to stronger interactions between the protective material and toxic compound of interest. One class of MOFs composed of zirconium-based nodes (Zr-MOFs) has been investigated extensively for their ability to …
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Analyzing decomposition of diisopropyl methylphosphonate (DIMP) in high-explosive detonations using absorption spectropscopy and gas concentration measurements
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Interfacial Energy Transfer in Small Hydrocarbon Collisions with Organic Surfaces and the Decomposition of Chemical Warfare Agent Simulants within Metal-Organic Frameworks
… air-based destruction of traditional chemical nerve agents is realized.
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Synthesis and applications of materials and polymers containing graphenic and/or triptycene moities
… 1,3,5- triazacyclohexane) and organophosphate nerve agents. This triptycene-polyurea (TPU) was found to be fluorescent in solution in the presence of H-bonding solvents. TPU was cast into thin films and a 12% increase in the fluorescent emission at 443 nm was observed in the presence of …