Dynamic simulations of multicomponent lipid membranes over long length and time scales

Details Dynamic simulations of multicomponent lipid membranes over long length and time scales Dynamic simulations of multicomponent lipid membranes over long length and time scales

2011-05-24

arxiv.org/abs/1105.4898v1

Phys. Rev. Lett. 105, 148102 (2010)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevLett.105.148102

We present a stochastic phase-field model for multicomponent lipid bilayers that explicitly accounts for the quasi-two-dimensional hydrodynamic environment unique to a thin fluid membrane immersed in aqueous solution. Dynamics over a wide range of length scales (from nanometers to microns) for durations up to seconds and longer are readily accessed and provide a direct comparison to fluorescence microscopy measurements in ternary lipid/cholesterol mixtures. Simulations of phase separation kinetics agree with experiment and elucidate the importance of hydrodynamics in the coarsening process.

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