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 20 of 45 for “"nuclear magnetic resonance spectroscopy (NMR)"”.
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Solution structure and dynamics of myoglobin and its mutants
… with atomic resolution is obtained by using nuclear magnetic resonance spectroscopy (NMR).
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Lipoprotein Subclass Measurements by an Updated Nuclear Magnetic Resonance Spectroscopy Method in the Prediction of Coronary Artery Disease in Type 1 Diabetes
… the early 2000s, lipoprotein subfractions by nuclear magnetic resonance spectroscopy (NMR) were measured as part of a nested, within the Epidemiology of Diabetes Complications study (EDC) cohort, coronary artery disease (CAD) case-control study in 142 study participants2, 3, 4, 5, 6, 7. …
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An Unprecedented Research Project into the Alcohol Retention Variation of Flavored Spirits
… tested through distillation, densitometry, and nuclear magnetic resonance spectroscopy (NMR). Given the results based on NMR data and NaCl additions, intermolecular hydrogen bonding is not the direct cause of the ethanol retention. However, a direct correlation between increasing pH and …
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Polyelectrolyte multilayers incorporating photocrosslinking polymers for controlling 2- and 3-dimensional structure
… The chemical modification was characterized by nuclear magnetic resonance spectroscopy (NMR) and light spectroscopy.
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Molecular Biophysics of Mammalian and Fungal Macromolecular Assemblies
<p>Nuclear Magnetic Resonance Spectroscopy (NMR) is a powerful and highly versatile analytical tool that allows for the collection of data reflecting the macromolecular organization of an ordered structure, and even intramolecular interactions of nuclei. This thesis details two projects that …
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Studies of anti-trypanosomal active triterpenoids from some African propolis
… of analysis using thin layer chromatography and nuclear magnetic resonance spectroscopy (NMR) one triterpene compound was identified from 710.58Fr8 and its structure was elucidated as Ambolic acid.
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USE OF MOLECULAR APPROACHES TO STUDY THE OCCURRENCE OF EXTREMOPHILES AND EXTREMODURES IN NON-EXTREME ENVIRONMENTS
… in the environment was investigated using nuclear magnetic resonance spectroscopy (NMR) to detect the compatible solutes and atomic emission spectophotometery (AES) to measure the cellular potassium ions. In addition, ultraviolet-type C tolerant bacteria were isolated from terrestrial …
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Structural and morphological characterization of hydrozincite and its interaction with organic molecules
… (XRD), Fourier Transform Infrared (FT-IR), Nuclear Magnetic Resonance (NMR), Scanning Electron Microscopy (SEM), and High-Resolution Transmission Electron Microscopy (HR-TEM) and the organic matrix present has been extracted and characterized by using Fourier Transform Infrared (FT-IR). In …
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Chemical characterization and aquatic biotoxicity testing of dye wastewaters and their reduction products
… chromatography (HPLC), gas chromatography/mass spectroscopy (GC/MS), and nuclear magnetic resonance spectroscopy (NMR). The toxicity of this purified compound was measured with Microtox and Daphnia pulex tests. Microtox tests were also performed on compounds with similar structures to p- …
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Inorganic/organic hybrid polymers
… of instrumental techniques including infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), X-ray diffraction (XRD), elemental analysis, thermal analysis, surface area analysis and electrokinetic analysis. Vinyl modified silicas having large surface areas (about 400m2g" 1 ) …
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Mineral-Surface Chemistry of Hydroxyapatite and Urea-Rich Solutions
… modulated – infrared reflection-absorption spectroscopy (PM-IRRAS) to monitor structural changes of the mineral surface. Thin hydroxyapatite films were analyzed with scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), and PM-IRRAS before and after reaction. …
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Synthesis and Thermal Characterization of a Series of Copolyesters Synthesized from Terephthaloyl Chloride, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and Bisphenol A, AF, F, and HPF
… was verified by fourier-transform infrared spectroscopy (FTIR), as well as gel-permeation chromatography (GPC), and nuclear magnetic resonance spectroscopy (NMR). The latter yielding information not only about the structure, but also about the percent cis and trans CBDO, as well as the …
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Thermoresponsive Glycopolymers via Controlled Radical Polymerization (RAFT) for Biomolecular Recognition
… of the polymers was performed by nuclear magnetic resonance spectroscopy (NMR), ultraviolet (UV), dynamic light scattering (DLS, detection of aggregation behaviour) and gel permeation chromatography (GPC). Polymer films were investigated by ellipsometry, X-ray photoelectron …
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Insights into the structures and dynamics of the pathogen secreted effectors AVR3A11 and tarp through the application of NMR spectroscopy
… environment. Primarily through the use of nuclear magnetic resonance spectroscopy (NMR), I have investigated the biophysical properties of two such bacterial e�ector proteins. TARP (translocated actin recruiting protein) is a largely disordered 100 kDa e�ector, common to all chlamydial …
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Geometric Algorithms for Protein Structure Determination Using Measurements From Nuclear Magnetic Resonance Spectroscopy
… treatments and therapeutics. Measurements from nuclear magnetic resonance spectroscopy (NMR) reveal information about the structures of proteins, but building accurate atomic-resolution models from such measurements is an arduous task. The ambiguity and uncertainty of these measurements, and the …
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Tracking the Function and Failure of Li-Air Electrolytes using Electrochemical and Spectroscopic Methods
… Voltammetry (CVs) and Electrochemical impedance Spectroscopy (EIS) the effect of ionic association is studied. The second chapter utilises 1H and 17O Nuclear Magnetic Resonance Spectroscopy (NMR) for the in situ monitoring of LAB electrolytes and to study their mechanisms and degradation. The …
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THE BIOTRANSFORMATION OF BILE ACIDS BY A COMMON MEMBER OF THE BISON GUT MICROBIOME
… and their structures were identified by nuclear magnetic resonance spectroscopy (NMR), mass spectrometry (MS), and X-ray diffraction experiments. Importantly, metabolites produced by A. citreus EINP1 in vitro were also consistently observed in bison fecal samples, suggesting they play a …
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A multifactorial investigation of the capacities of lipid-soluble dietary antioxidants to suppress the thermally induced generation of Lipid Oxidation Products and alternative methods of detection.
… formation in food systems. Techniques such as nuclear magnetic resonance spectroscopy (NMR) can measure these aldehyde species but have limitations that prevent its use in a wider-industry focused market. Recently, low-field NMR (LF-NMR) instruments have been developed offering potential …
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Understanding the Role of Anisotropy on the Optoelectronic and Colloidal Properties of Quantum Rods for Programmable Self-Assembly with DNA Origami
… ligand was studied using a series of solution nuclear magnetic resonance spectroscopy (NMR) techniques, including the traditional one-dimensional 1H, as well as the more advanced two-dimensional diffusion ordered spectroscopy (DOSY) and relaxation ordered spectroscopy (ROSY). My work revealed …
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Synthesis and characterization of conjugated materials with phosphorus
… materials were fully characterized via: multi-nuclear magnetic resonance spectroscopy (NMR), melting points (MP), elemental analyses (EA) or high resolution mass spectroscopy (HRMS), ultraviolet-visible spectroscopy (UV-vis) and fluorescence spectroscopy. Some materials were characterized by …
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