Seminar über Theorie der kondensierten Materie / TRR146 Seminar

Dec. 14, 2004 at 1:15 p.m. in Newton-Raum (01-122, Bau 2.413)

F. Schmid
friederike.schmid@uni-mainz.de

P. Virnau
virnau@uni-mainz.de

L. Stelzl
lstelzl@uni-mainz.de

Efficient tunable generic model for self-assembling fluid bilayer membranes
Dr. Markus Deserno (MPI für Polymerforschung, Mainz)


I will present a new model for the simulation of generic lipid bilayers in the mesoscopic regime (between a few nanometers and many tens of nanometers), which is very robust, versatile, and extremely efficient, since it avoids the need for an embedding solvent. Based entirely on simple pair potentials, it features a wide region of unassisted self assembly into fluid bilayers without the need for careful parameter tuning. The resulting membranes display the correct continuum elastic behavior with bending constants in the experimentally relevant range. It can be readily used to study events like bilayer fusion, bilayer melting, lipid mixtures, rafts, and protein-bilayer interactions.