DPG Phi
Verhandlungen
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DPG

Berlin 2001 – scientific programme

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MO: Molekülphysik

MO 1: Posters Monday: Clusters, Fullerenes and Nanotubes

MO 1.29: Poster

Monday, April 2, 2001, 12:30–15:00, AT3

SANS study of the structure of DPPC/NaDC aggregates as a function of lipid/detergent ratio — •Martin Janich1, Mikael Kiselev2, and Annegret Hildebrand31IWZ für Materialwissenschaft, Martin-Luther-Universität Halle — 2Frank Laboratory of Neutron Physics, Dubna, Russia — 3Fachbereich Pharmazie, Martin-Luther-Universität Halle

Small angle neutron scattering (SANS) and dynamic light scattering (DLS) were used to study the different aggregation states in sodium deoxycholate-phosphatidylcholine (concentration of 6 mM) systems at T = 60 degrees Celsius. The size and the shape of the aggregates, occurring in the vesicle to micelle transition, were investigated in dependence on the bile salt concentration (1.5 - 10 mM). The interpretation of the SANS spectra was performed by Guinier approximation as well as the vesicles and micelles model spectra calculations.

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