Search for dissertations about: "NMR relaxation dispersion"

Showing result 1 - 5 of 15 swedish dissertations containing the words NMR relaxation dispersion.

2. 1. Nuclear Magnetic Relaxation in Micellar Solution and Lyotropic Liquid Crystals. Tools and Applications

   Author : Ruslan Sitnikov; KTH; []
   Keywords : NMR; NMR relaxation dispersion; NMR spectrometer; low NMR frequencies; NMR duplexer; NMR preamplifier; NMR lock; surfactant systems; micellar solutions; lyotropic liquid crystals; cubic mesophase;

   Abstract : Structurally, this Thesis is divided into two parts thatdescribe (i) the hardware development for NMR relaxationstudies and (ii) its applications for studies of the surfactantsystems.The developed hardware solutions allow to expand thefrequency range covered by conventional NMR spectrometers tomake NMR experiments feasible at resonance frequencies down to100 kHz. READ MORE

4. 2. Probing Dynamics of Oligosaccharides by Interference Phenomena in NMR Relaxation

   Author : Leila Ghalebani; Jozef Kowalewski; Norbert Mueller; Stockholms universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NMR; sugars; oligosaccharides; carbon-13 relaxation; cross-correlated relaxation; molecular dynamics; internal motion; random jumps; PRE; paramagnetic relaxation; Chemistry; Kemi; fysikalisk kemi; Physical Chemistry;

   Abstract : Oligosaccharides (carbohydrates) are a large class of biological molecules that are important as energy sources in the human body and have enormously varied biological functions. It is generally believed that biological activities of carbohydrates are related to their internal dynamics. READ MORE

5. 3. Galectin-3 Ligand Binding: Mechanism and Driving Forces

   Author : Olof Stenström; Biofysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Dynamics; NMR; ITC; Relaxation dispersion; NMR relaxation; Ligand binding; Thermodynamic; Galectin-3; Entropy; Binding Mechanism; Induced fit; Conformational selection;

   Abstract : .... READ MORE

6. 4. Adsorption, aggregation and phase separation in colloidal systems

   Author : Jing Dai; Istvan Furo; Peter Griffiths; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR; chemical shift; spin relaxation; self-diffusion; micelle; core freezing; segregation; solubilization; release; adsorption; binding; surfactant; carbon nanotube; block copolymer; dispersion; competitive adsorption; nanocomposite; Kemi; Chemistry;

   Abstract : The thesis presents work regarding amphiphilic molecules associated in aqueous solution or at the liquid/solid interface. Two main topics are included: the temperature-dependent behavior of micelles and the adsorption of dispersants on carbon nanotube (CNT) surfaces. READ MORE

7. 5. Magnetic relaxation studies of self-associating and membrane proteins

   Author : Michael Gottschalk; Lund University Bioimaging Center; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; beta-lactoglobulin A; Biokemisk teknik; Biochemical technology; HEWL; BPTI; bacteriorhodopsin; protein self-association; membrane proteins; NMR; magnetic relaxation dispersion;

   Abstract : Magnetic relaxation dispersion measurements have been performed on aqueous protein solutions to study the dynamics of waters in the proton transport channel of bacteriorhodopsin and the self-association of the proteins BPTI, lysozyme and beta-lactoglobulin. The measurements have focused on the bulk relaxation rates, R1 and R2, of three water nuclei 1H, 2H and 17O that are coupled to the protein environments by exchange and therefore report on properties such as the protein tumbling and dynamics of internal waters. READ MORE