title: Simulating Membrane Dynamics in Nonhomogeneous Hydrodynamic Environments.
abstract: Two previously introduced simulation algorithms for the dynamics of elastic membrane sheets embedded in a fluid medium are extended to account for inhomogeneous hydrodynamic environments. We calculate the height autocorrelation function for a lipid bilayer randomly pinned to a flat substrate and the influence of fluid confinement by the spectrin cytoskeleton on short wavelength membrane undulations of the human red blood cell. Altering the hydrodynamic environment of the membrane leads to significant changes in dynamics, and we discuss these effects in the context of recent experiments.
authors.affiliation: Department of Physics, University of California, Santa Barbara, California 93106-9530, and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510.
authors.forename: Lawrence C-L
authors.initials: LC
authors.lastname: Lin
authors.affiliation: Department of Physics, University of California, Santa Barbara, California 93106-9530, and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510.
authors.forename: Frank L H
authors.initials: FL
authors.lastname: Brown