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 13 of 13 for “"Rapid Kinetics"”.
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Studies on the Mechanism of the Pyruvate Oxidase Flavoprotein of Escherichia Coli (Rapid Kinetics, Biochemical Software, Lipid-Activated Enzyme)
The pyruvate oxidase flavoprotein catalyzes the oxidative decarboxylation of pyruvate to acetate and carbon dioxide. Flavin adenine dinucleotide and thiamin pyrophosphate are cofactors. The enzymatic activity of the purfied flavoprotein is very low in the absence of lipids. Following reduction by …
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CFD analysis of reactive crystallisation in stirred tanks : a focus on nickel hydroxide
… with a particular focus, due principally to the rapid kinetics typically exhibited by precipitaion systems, on mixing and representation of time-dependent spatial inhomogeneities.
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Investigation towards controlled precipitation of nickel using H2S(g) by harnessing pH dependent sulphide speciation
… of metal sulphides in combination with the rapid kinetics of sulphide precipitation leads to rapid, uncontrolled metal sulphide precipitate formation. The extremely high supersaturations result in high rates of nucleation, leading to the formation of particles with undesirable …
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Toxic gas sensors using thin film transistor platform at low temperature
… be operated between 200-400°C to insure rapid kinetics. Another problem impacting TFR performance and reproducibility is related to poorly understood substrate-semiconductor film interactions. Space charges at this heterojunction are believed to influence chemisorption on the …
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Oriented polymer crystal growth from flowing solutions
The kinetics of dilute solution flow-induced crystallization in a tubular flow geometry have been quantified for several polymer systems using digital image processing to observe and monitor the birefringence of the crystallizing fiber. Three molecular weights of polyethylene were studied in 0.01 …
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Optogenetic regulation of protein activity in live cell
… classes of proteins, phosphatase and kinase with rapid kinetics response. Second, I discuss role of speckle-type POZ protein (SPOP) in cell differentiation inhibition in PC12 and primary rat hippocampus neuron cell. Next, I combined the GLIMPSe system with the Sufu protein, a SPOP phenocopy and …
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An investigation of phase transformations in Pt-V coating systems
… platinum substrates using E-beam deposition. The kinetics of phase transformation were studied by subjecting the coated layers to a variety of heat treatments in the temperature range 600°C to 900°C for 4 and 8 hours. Composition and morphology characterization was carried out using EDS and SEM …
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Lesion Bypass of N2-ethylguanine by the Human Y Family DNA Polymerases Iota and Kappa
… DNA adduct were studied using steady-state and rapid kinetics and structural analyses. Structures of two ternary complexes of DNA pol ι containing N2-ethylGua in the active site and with incoming dCTP or dTTP were solved. The structural data are evidence that the DNA pol ι utilizes Hoogsteen …
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Water-Soluble Redox Materials and Their Applications in Aqueous Batteries
… solutions, which overcome the sluggish reaction kinetics of polysulfide and improve the electrocatalytic activity for polysulfide reactions in aqueous solution. This work opens the way to the preparation of optimal electrocatalysis of polysulfide redox reactivity and provides an alternative …
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Development of fluorescent semi-conductor nanocrystal conjugates for in vitro and in vivo imaging applications
… efficiencies on QDs. In addition, the rapid kinetics, absence of catalyst, and bio-orthogonality of the cycloaddition allowed us to achieve in situ conjugation of the norbornene-bearing QDs to tetrazine-bearing epidermal growth factor (EGF) proteins on the HeLa cell surface. On the in …
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Mechanism of biosynthesis of the dimanganese-tyrosyl radical cofactor of class lb Ribonucleotide reductase
… establishing its physiological relevance. Rapid kinetics studies of Mn"'12 -Y· cofactor assembly in Bacillus subtilis NrdF support a mechanism in which NrdIhg rapidly reduces 02 to 02- and the 02'- channels to and reacts with Mn"2-NrdF to form a Mn" Mnv intermediate, which oxidizes tyrosine …
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Metallo-β-lactamase-like enzymes from non-pathogenic organisms: an illustration of functional promiscuity
… experiments are described (including rapid kinetics and spectroscopic techniques) that provide insight into the active site structure and the mechanism of substrate turnover. In brief, while MIM-1 and MIM-2 employ a strategy that is similar to that of other MBLs by using a metal …