Sökning: "Dipolar couplings"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Dipolar couplings.

  1. 1. Molecular Structure in Liquid Crystals Studied by NMR

    Författare :Johan Thaning; Arnold Maliniak; Claudio Zannoni; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NMR; Maximum Entropy; APME; Dipolar couplings; Liquid Crystals; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : This thesis is focused on structure determinations of molecules in liquid crystals using NMR. The systems described here exhibit orders ranging from nearly isotropic to essentially solid. LÄS MER

  3. 2. Conformational Dynamics of Carbohydrates Studied by NMR Spectroscopy and Molecular Simulations

    Författare :Jennie Östervall; Göran Widmalm; C. Allen Bush; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbohydrates; NMR; Molecular Dynamics; Conformation; Dynamics; Residual Dipolar Couplings; Cyclodextrins; Oligosaccharides; Organic chemistry; Organisk kemi;

    Sammanfattning : Carbohydrates play important roles in biological processes. Their function is closely related to their conformation. In this thesis, conformational studies of carbohydrates by NMR spectroscopy and molecular dynamics computer simulations are described. LÄS MER

  4. 3. EGF-like modules in blood coagulation proteins : Ca²+ binding, module interactions, structure and dynamics as studied by NMR spectroscopy

    Författare :Andreas Muranyi; Biofysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; residual dipolar couplings; protein S; factor VII; protein structure; calcium; blood coagulation; NMR spectroscopy; EGF modules; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Modules are independently folding protein domains defined on the gene level. The epidermal growth factor-like (EGF) modules are involved in protein-protein interactions and are found in numerous membrane proteins and extracellular proteins, including many proteins of the blood coagulation system. LÄS MER

  5. 4. Dipolar recoupling in magic-angle-spinning nuclear magnetic resonance

    Författare :Andreas Brinkmann; Beat Meier; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : This thesis concerns the development of radio-frequency pulse sequences in magic-angle-spinning solid-state nuclear magnetic resonance.First, two classes of pulse sequences are presented which are synchronized with the sample rotation. LÄS MER

  7. 5. Structural and conformational studies of bacterial polysaccharides employing NMR spectroscopy

    Författare :Mikael Staaf; Jesus Jiminez-Barbero; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bacterial polysaccharides; Magnetic resonance spectroscopy; Organic chemistry; Organisk kemi; Organic Chemistry; organisk kemi;

    Sammanfattning : Methods and approaches for performing structural and conformational analysis of bacterial polysaccharides in solution are described. The structure of one exopolysaccharide from Lactobacillus helveticus and two O-antigens from Escherichia coli have been determined using NMR spectroscopy, chemical degradation and mass spectrometry. LÄS MER