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AKB: Biologische Physik

AKB 30: Poster Session I

AKB 30.25: Poster

Montag, 27. März 2006, 15:30–18:00, P1

Synchrotron x-ray diffraction from solid supported membranes: Cholesterol enriched mixtures — •Christian Reich, Joachim Rädler, and Bert Nickel — Department für Physik, Ludwig-Maximilians-Universität, München, Germany

Phase separation and lipid-protein interactions are important processes occurring in cell membranes. Useful model systems are single supported lipid bilayers, which retain to a high extent the properties of real cell membranes. We use a novel microfluidic setup that allows to employ complementary methods such as high resolution synchrotron reflectivity and fluorescence microscopy on the same sample [1]. These two dictinct but highly complementary methods allow for the first time to get a full micro- and nanoscopic picture of membrane properties such as structure, packing density, homogeneity and fluidity.
Current research topics in our group focus on the molecular arrangement of complex lipid mixtures in supported membranes and their transport properties. Recent results are presented.

[1] C. Reich et al., Rev. Sci. Instr. 76, 095103 (2005)