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.
@article{arxiv.1105.4898,
title = {Dynamic simulations of multicomponent lipid membranes over long length and time scales},
author = {Brian A. Camley and Frank L. H. Brown},
journal= {arXiv preprint arXiv:1105.4898},
year = {2011}
}