Dresden 2014 – scientific programme
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BP: Fachverband Biologische Physik
BP 6: Posters: Membranes and vesicles
BP 6.4: Poster
Monday, March 31, 2014, 17:30–19:30, P3
Hydration repulsion between membranes and polar surfaces: simulation approaches versus continuum theories — •Matej Kanduc1, Alexander Schlaich1, Emanuel Schneck2, and Roland Netz1 — 1Free University Berlin, D-14195 Berlin, Germany — 2Institut Laue-Langevin, Grenoble, France
A computer all-atom simulation approach for the study of the hydration repulsion between lipid membranes and polar surfaces is presented. We show the main results on repulsive hydration pressures, interaction thermodynamics, and interaction mechanisms. We have a close look at the influence of the experimental boundary conditions on the repulsion mechanisms due to the unfavorable overlap of interfacial water layers. To this end, we analyze several water order parameters in simulations of interacting polar surfaces and compare the results to the predictions of continuum theories.