Sökning: "CIRCULAR-DICHROISM"

Visar resultat 1 - 5 av 113 avhandlingar innehållade ordet CIRCULAR-DICHROISM.

  1. 1. The circular dichroism of DNA-ligand systems

    Författare :Reidar Lyng; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 6-diamidino-2-phenylindole; transition moments; methylene blue; optical activity; DNA ligand; DNA; induced circular dichroism; calculation of circular dichroism; Ru 1; circular dichroism; 10-phenathroline ; 4 ;

    Sammanfattning : .... LÄS MER

  2. 2. Long-range intermolecular dispersion forces and circular dichroism spectra from first-principles calculations

    Författare :Auayporn Jiemchooroj; Bo Sernelius; Patrick Norman; Kenneth Ruud; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; van der Waals forces; dispersion forces; dispersion coefficients; polarizability; electronic circular dichroism; Physics; Fysik;

    Sammanfattning : This work presents first-principles calculations of long-range intermolecular dispersion energies between two atoms or molecules and of electronic circular dichroism spectra of chiral molecules. The former is expressed in terms of the C6 dipole-dipole dispersion coefficients Δε, and the latter is given in terms of the extinction coefficient. LÄS MER

  3. 3. Apoptosis Regulation via the Mitochondrial Pathway : Membrane Response upon Apoptotic Stimuli

    Författare :Marc-Antoine Sani; Gerhard Grobner; Antoinette Killian; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Apoptosis; BH4 peptide; Bax-α1 peptide; model membrane; cardiolipin; solid phase peptide synthesis; circular dichroism; solid-state nuclear magnetic resonance spectroscopy.; Biophysics; Biofysik;

    Sammanfattning : The aim of this thesis was the investigation of the mitochondrial response mechanisms upon apoptotic stimuli. The specific objectives were the biophysical characterization of membrane dynamics and the specific roles of lipids in the context of apoptotic regulation occurring at the mitochondrion and its complex membrane systems. LÄS MER

  4. 4. Membrane mediated aggregation of amyloid-β protein : a potential key event in Alzheimer's disease

    Författare :Marcus Bokvist; Gerhard Gröbner; Göran Lindblom; Lena Mäler; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alzheimer’s Disease; Aβ40; Circular Dichroism; NMR; Amyloids; Crowding; Peptide-Lipid Interaction; Biophysical chemistry; Biofysikalisk kemi;

    Sammanfattning : The pathogenesis of Alzheimer’s disease (AD), the most common senile dementia, is a complex process. A crucial event in AD is the aggregation of amyloid-β protein (Aβ), a cleavage product from the Amyloid Precursor Protein (APP). LÄS MER

  5. 5. A Chloroplast Localized Small Heat Shock Protein, Hsp21. Importance of Hsp21 in stress protection of transgenic Arabidopsis thaliana, recombinant expression and characterization of oxidation-dependent conformational changes

    Författare :Ulrika Härndahl; Biokemi och Strukturbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; a-crystallin; sHsp; chaperone; amphipathic a-helix; oligomer; redox-regulated; methionine sulfoxidation; oxidative stress; regulation; protein structure; circular dichroism; mass spectrometry; fluorescence spectroscopy; Biochemistry; Metabolism; Biokemi;

    Sammanfattning : A specific group of heat shock proteins, the so called small heat shock proteins (sHsps), exists in all organisms but are especially abundant in plants. The sHsps prevent aggregation of other proteins (substrate proteins) during transient heat and oxidative stress. LÄS MER