Search for dissertations about: "stilbene"

Showing result 1 - 5 of 32 swedish dissertations containing the word stilbene.

  2. 1. Photoswitchable Peptidomimetics : Synthesis and Photomodulation of Functional Peptides

    Author : Miranda Varedian; Adolf Gogoll; Morten Grøtli; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; β-hairpin; peptidomimetics; stilbene; thioaurone; photochemistry; Organic chemistry; Organisk kemi;

    Abstract : The secondary structure of peptides is of pivotal importance for their biological function. The introduction of photoswitchable moieties into the backbones of peptides provides a unique way of regulating their conformation using an external stimulus, i.e., light. READ MORE

  4. 2. Synthesis and characterization of fluorescent stilbene-based probes targeting amyloid fibrils

    Author : Jun Zhang; Peter Konradsson; Per Hammarström; Xiongyu Wu; Lin Li; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Alzheimer’s disease (AD) is characterized by two main protein aggregate hallmarks in the brain: extracellular deposition of the amyloid-β (Aβ) in senile plaques and intracellular neurofibrillary tangles (NFTs) consisting of hyperphosphorylated tau protein. The past decade has seen great progress in the development of imaging probes for the non-invasive detection of Aβ and tau aggregates. READ MORE

  5. 3. Host-Guest Interactions for Structural Analysis of Organic Molecules : Development of new Tools for Stereochemical Characterization

    Author : Sandra Olsson; Adolf Gogoll; Kari Rissanen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; metalloporphyrins; host-guest systems; bis-porphyrin tweezers; stiff stilbene macrocycles; organic synthesis; porphyrin binding studies; NMR; ECCD; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : The focus of this thesis is on the development of molecular tweezers as host-guest systems for stereochemical characterization of small organic molecules.There are two central problems to stereochemical characterization of small molecules. READ MORE

  6. 4. Characterization of Epoxide Hydrolases from Yeast and Potato

    Author : Lisa Tronstad-Elfström; Mikael Widersten; Michael Arand; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Epoxide hydrolase; Catalytic residues; Active site; trans-stilbene oxide; Rapid kinetics; Active site tyrosyls; Enzyme mechanism; Lewis acid; X-ray crystallography; Substrate specificity; Unidentified ORF; α β hydrolase fold; Saccharomyces cerevisiae; Biokemi; Biochemistry; Biokemi;

    Abstract : Epoxides are three-membered cyclic ethers formed in the metabolism of foreign substances and as endogenous metabolites. Epoxide hydrolases (EHs) are enzymes that catalyze the hydrolysis of epoxides to yield the corresponding diols. READ MORE

  7. 5. Thermal cis-trans isomerization in the vapour phase of stilbene, azobenzene, N-benzylideneaniline and some of their derivatives : a flash photolysis study

    Author : Roland Pettersson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE