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Now showing items 51-60 of 212
Roles of an 'Inactive' Domain in Catalase-Peroxidase Catalysis: Modulation of Active Site Architecture and Function by Gene Duplication
(2008-09-09)
Within biological systems iron is a transition metal that allows access to the benefits of molecular oxygen as an oxidant. However, with these benefits come grave consequences if the reactions are not strictly controlled. ...
Crossroads and Terminations in Transuranium Chemistry
(2008-09-09)
The focus of this dissertation is published results from my doctoral research at Auburn University, the scope of which is multifaceted. The first topic covers recent research devoted to developing a better understanding ...
Catalytic Mechanism of a Flavin-Dependent Alkanesulfonate Monoxygenase from Escherichia coli
(2008-09-09)
The flavin-dependent alkanesulfonate monooxygenase (SsuD) catalyzes the
oxidation of alkanesulfonate to aldehyde and sulfite in the presence of O2 and FMNH2
provided by an FMN reductase (SsuE). The goal of these studies ...
Ion Selective Polymeric Membranes as Chemically Selective Coulometric Electrodes
(2008-09-09)
Potentiometric and optical ion sensors use highly selective lipophilic ionophores as a special additive in a plasticized PVC membrane have been thoroughly studied for application as a coulometric electrode. This dissertation ...
Quantum Chemical Studies and Kinetics of Gas Reactions
(2008-09-09)
Potential energy surfaces and reaction mechanisms were calculated using various computational methods such as density-functional and wave-function methods. High-level computational methods were used to obtain accurate ...
Characterization of the iron center in cysteine dioxygenase and kinetic analyses of flavin binding by the alkanesulfonate flavin reductase
(2008-09-09)
Cysteine dioxygenase (CDO) and the flavin reductase, SsuE, are both important proteins in sulfur metabolism. CDO catalyzes cysteine oxidation which is a key step in cysteine metabolism in mammalian systems. SsuE is a flavin ...
Studies on Laser Ablation of Polymer Coated Propellant Films
(2008-09-09)
In artillery, safety issues make propellants highly preferable as compared to ordinary explosives. However, the same properties that make propellants safer, such as their low shock sensitivities, also make them more difficult ...
Studies on The Synthesis of B-Ring 6-Azasteroids
(2008-09-09)
Azasteroids, which carry a nitrogen in the C-6 position of the steroid nucleus are still
mysterious and very few synthesized, were found to possess antimicrobial and antifungal
properties apart from their pharmacodynamic ...
Enhancing Expression of Recombinant Hemoproteins: Progress Toward Understanding Structure/Function and Therapeutic Application
(2008-09-09)
Nature has developed ways to control the essential need to activate oxygen. Hemoproteins perform this task using iron in a prosthetic group (e.g., iron-protoporphyrin-IX or heme). The environment surrounding the heme iron ...
Spectral and Electrochemical Study of the Response of Mechanism of Ionphore-Based Polymeric Membranes
(2008-09-09)
Ion-Selective electrodes based on solvent polymeric membranes, typically plasticized poly-(vinyl chloride), are routinely used and fundamental studies on ion transfer mechanisms that dictate their practicality continue. ...