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Showing result 1 - 5 of 307 swedish dissertations matching the above criteria.

2. 1. Structure, dynamics and reactivity of carbohydrates : NMR spectroscopic studies

   Author : Jerk Rönnols; Göran Widmalm; Mikael Bols; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbohydrates; Conformation; NMR spectroscopy; Hydrogen bond; organisk kemi; Organic Chemistry;

   Abstract : The main focus of this thesis is on the ring conformations of carbohydrate molecules; how the conformational equilibria and the rates of the associated interconversions are affected by the molecular constitution and their surroundings.The conformational equilibria of a group of amine linked pseudodisaccharides, designed as potential glycosidase inhibitors, comprising α-D-altrosides are described in Chapter 3. READ MORE

4. 2. NMR spectroscopy and MD simulations of carbohydrates

   Author : Elin Säwén; Göran Widmalm; Manuel Martin Pastor; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR specroscopy; MD simulations; carbohydrates; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

   Abstract : Knowledge about the structure, conformation and dynamics of carbohydrates is important in our understanding of the way carbohydrates function in biological systems, for example in intermolecular signaling and recognition. This thesis is a summary of five papers studying these properties in carbohydrate-containing molecules with NMR spectroscopy and molecular dynamics simulations. READ MORE

5. 3. Synthesis and analysis of carbohydrates related to bacterial polysaccharides

   Author : Hani Mobarak; Göran Widmalm; Ulf Nilsson; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbohydrates; synthesis; conformation; NMR; O-antigen; computer-assisted structure elucidation; Organic Chemistry; organisk kemi;

   Abstract : The outer surface of bacteria is composed of around 75% carbohydrates, which are vital for the bacteria to survive and communicate with the host biological system. The thesis discusses different properties of carbohydrates that are essential for understanding the bacterial behavior in biological systems. READ MORE

6. 4. Exploring the Molecular Behavior of Carbohydrates by NMR Spectroscopy : Shapes, motions and interactions

   Author : Olof Engström; Göran Widmalm; Anthony S. Serianni; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NMR spectroscopy; NMR relaxation; DNMR; CORCEMA-ST; carbohydrates; caffeine; O-antigen; glycofullerenes; organisk kemi; Organic Chemistry;

   Abstract : Carbohydrates are essential biomolecules that decorate cell membranes and proteins in organisms. They are important both as structural elements and as identification markers. Many biological and pathogenic processes rely on the identification of carbohydrates by proteins, thereby making them attractive as molecular blueprints for drugs. READ MORE

7. 5. Conformational Dynamics of Carbohydrates Studied by NMR Spectroscopy and Molecular Simulations

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

   Abstract : 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. READ MORE