Dresden 2011 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 13: Posters: Biological Membranes
BP 13.15: Poster
Montag, 14. März 2011, 17:15–20:00, P3
Lipid layer studies at the LISA liquid interface diffractometer at PETRA III — •Klaas Loger1, Annika Elsen1, Lars Joergensen2, Benjamin Runge1, Christian Koops1, Matthias Greve1, Oliver Seeck3, Beate Kloesgen2, Olaf Magnussen1, and Bridget Murphy1 — 1IEAP, Christian-Albrechts-Universität zu Kiel, Leibnizstr. 19, D-24098 Kiel, Germany — 2MEMPHYS, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark — 3PETRA III at DESY, Notkestr. 85, D-22603 Hamburg, Germany
Lipid monolayers and bilayers at liquid-air and liquid-liquid interfaces are important model systems for biological membranes. The study of their molecular structure and properties by x-ray scattering methods requires special diffractometers, capable of tilting the beam at precise angles down onto the interface. The new liquid interface scattering apparatus (LISA) for the High Resolution Diffraction Beamline at PETRA III uses a non-dispersive tilting double crystal monochromator which allows reflectivity measurements without moving the sample. Here we present dedicated instrumentation for model membrane studies, specifically a newly developed experimental sample environment and first results on lipid layers at liquid interfaces.