Brownian Dynamics in Fourier Space: Membrane Simulations over Long Length and Time Scales

Lawrence C.-L. Lin and Frank L. H. Brown

Phys. Rev. Lett. 93, 256001 – Published 14 December 2004

Abstract

A simulation algorithm for elastic membrane sheets is presented. Overdamped stochastic dynamics including hydrodynamic coupling to surrounding solvent and arbitrary external forces are generated by employing Fourier modes of the sheet as the primary dynamic variables. Simulations over the micron length scale and second time scale are easily achieved. The dynamics of a lipid bilayer attached to an underlying network of cytoskeletal filaments is used to estimate the diffusion constant of membrane-bound proteins on the surface of the red blood cell.

Received 7 July 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.256001

Authors & Affiliations

Lawrence C.-L. Lin¹ and Frank L. H. Brown²

¹Department of Physics, University of California, Santa Barbara, California 93106-9530, USA
²Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, USA

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Issue

Vol. 93, Iss. 25 — 17 December 2004

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