Stereochemistry-dependent self-assembly in synthetic glycolipid/water systems: the aqueous phase structure of 1,3-di-O-dodecyl-2(beta-maltoheptaosyl)glycerol

Article Abstract:

Research was conducted to examine the temperature-concentration dependent phase diagram of an aqueous maltoheptaose-containing lipid, 1,3-di-O-dodecyl-2(beta-maltoheptaosyl)glycerol, Mal7(C12)2. The objective is to derive direct evidence supporting the hypothesis by confirming an H(sub I) and a normal micellar solution in the Mal7(C12)2/water system. Results suggest that a preferred phase of the Mal(sub N)(C12)2 shifts from an H(sub II) to an H(sub I) through an L(sub alpha) phase as N increases.

Glycolipids, Glycerol, Stereochemistry

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Fluorescence polarization studies of inclusion complexes between beta-cyclodextrin and 1-Chloronaphthalene in aqueous and aqueous D-glucose solutions

Article Abstract:

A study was conducted relating to research on inclusion complexes formed by cyclodextrins with a guest molecule. The experiment investigated the interactions between a guest molecule, 1-chloronaphthalene, and the beta-cyclodextrin cavity using a fluorescence polarization method and fluorescence spectroscopy. Degree of polarization for the monomer and excimer fluorescence of 1-chloronaphthalene was studied as a function of excitation and observation wavelengths. Experimental results are discussed.

Case studies, Fluorescence, Cyclodextrins, Organochlorine compounds, Organic chlorine compounds, Polarization (Light)

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Oligosaccharides as model systems for understanding water-biopolymer interaction: hydrated dynamics of a hyaluronan decamer

Article Abstract:

Research involving a five-nanosecond simulation of a hyaluronan decasaccharide in aqueous solution is presented. It is predicted that, although intramolecular hydrogen-bond interactions exist, they may not be sufficiently persistent to be seen in aqueous solution from temperature changes of proton chemical shifts.

Biopolymers, Hyaluronic acid

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