Dynamics of membranes with immobile inclusions
arXiv:1108.3776 · doi:10.1103/PhysRevLett.107.258102
Abstract
Cell membranes are anchored to the cytoskeleton via immobile inclusions. We investigate the effect of such anchors on the in-plane dynamics of a fluid membrane and mobile inclusions (proteins) embedded in it. The immobile particles lead to a decreased diffusion coefficient of mobile ones and suppress the correlated diffusion of particle pairs. Due to the long-range, quasi-two-dimensional nature of membrane flows, these effects become significant at a low area fraction (below one percent) of immobile inclusions.
5 pages
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- Vortex Flows and Streamline Topology in Curved Biological Membranes
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- Persistent Collective Motion of a Dispersing Membrane Domain
- Vortex Dynamics in Tubular Fluid Membranes
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