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Showing 1 to 13 of 13 for “"photochemical oxidation"”.
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Photochemical Oxidation Studies of Porphyrin Ruthenium Complexes
… important, attractive and efficient catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in nature, namely, the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of this research and have …
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Hexametalates as Catalysts for Photochemical Oxidation Reactions
The reaction of TiCl$\sb4$ with WO$\sb4$((n-C$\sb4$H$\sb9$)$\sb4$N) $\sb2$ in acetonitrile yields ClTiW$\sb5$O$\sb $ ((n-C$\sb4$H$\sb9$)$\sb4$N) $\sb3$. The complexes ROTiW$\sb5$O$\sb $ (n-C$\sb4$H$\sb9$)$\sb4$N) $\sb3$ (R = CH$\sb3$, C$\sb2$H$\sb5$, and (CH$\sb3$)$\sb2$CH) are prepared in an …
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The Photochemical Oxidation of Sulfur-Dioxide to Sulfur-Trioxide and Its Effect on Fog Formation
Made available in DSpace on 2015-05-12T17:04:31Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0006946.PDF: 4678627 bytes, checksum: a6d28c4666d6454f5944846d8e335a05 (MD5) Previous issue date: 1953
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Novel chemical and toxicological studies on textile industry waste streams clean up
… dyes and purify dye house effluents modem photochemical oxidation methods, such as the UV /hydrogen peroxide process, provide an effective treatment technology. Organic contaminants can be completely mineralised by this method but it is relatively expensive. Photochemical oxidation with …
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Mass Spectrometry for Determination of Conformation and Dynamics of Proteins and Structure and Biosynthesis of Bacterial Peptidoglycan
… development of analytical methods combining fast photochemical oxidation of proteins: FPOP) and mass spectrometry analysis. In chapter 2 to 4, we discuss protein folding with sub-millisecond time resolution by a new pump/probe procedure. Perturbations in protein structure are by temperature jump …
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Influence of light and algae on nutrient transformations at the sediment-water interface of an agricultural stream
… mesocosm showed NH?⁺ increased likely due to photochemical oxidation. These results show the importance of promoting exchange through the subsurface and across the sediment-water interface due to the positive impact it has on nutrient retention.
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SUSTAINABLE CATALYSIS VIA IRON AND ZINC COMPLEXES: FROM TUNABLE METALLATE SYSTEMS TO PHOTOCHEMICAL REACTIVITY
… the synthesis of iron complexes as catalysts for photochemical oxidation. In the first part of the work, tetrahalometallate complexes of iron and zinc were employed as bifunctional catalysts for the cycloaddition of carbon dioxide to aziridines and epoxides, yielding oxazolidinones and cyclic …
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Ensemble and single molecules fluorescence studies of polymers
The effects of chain conformation on the photo-oxidation and green emission of poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) are investigated at both single molecule and ensemble levels. Single molecule studies reveal the conformation of PFO chains to be more globular when cast from THF than from …
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The Advancement of Mass Spectrometry-based Hydroxyl Radical Protein Footprinting: Application of Novel Analysis Methods to Model Proteins and Apolipoprotein E
Fast photochemical oxidation of proteins: FPOP) has shown great promise in the elucidation of the regions of a protein's structure that are changed upon interaction with other macromolecules, ligands, or by folding. The advantage of this protein footprinting method is that it utilizes the …
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Atmospheric Mercury Species In Northern Mississippi: Concentrations, Sources, Temporal Patterns, And Soil-Air Exchange
… Gom exhibited diurnal patterns characteristic of photochemical oxidation. Atmospheric modeling revealed that higher levels of plume events for airborne hg often occur with air masses from the northern USA. Gaseous mercury exchange between terrestrial surfaces and the atmosphere was also …
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Oxygen Isotopes as a Tracer of DOM Processes in River-Estuary Systems
… study to assess the sources of DOM oxygen in the photochemical oxidation of organic matter. In a series of laboratory irradiations using York River and Dismal Swamp water amended with either <sup>18</sup>O-enriched dissolved oxygen or water, the amount of <sup>18</sup>O incorporated into the high …
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Mass Spectrometry-Based Strategies for Biomolecular Structure Analysis: Steroid Metabolites Structures and Protein-Protein Interactions
… hydrogen-deuterium exchange (HDX) and fast photochemical oxidation of proteins (FPOP), are applied in two studies of protein-protein interactions, including: (1) dimerization of SecA, which is a motor protein in bacteria translocation pathway; and (2) interface mapping of EGFR binding to …
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Physiological and transcriptomic responses of soybean reproductive development to global climate change
… O3 is a secondary air pollutant formed from the photochemical oxidation of methane, carbon monoxide and volatile organic compounds (VOCs) in the presence of nitrogen oxides (NOx). High temperatures, drought stress and seasonally high [O3] already challenge agricultural production in many of the …