In-Plane Dynamics of Membranes with Immobile Inclusions

被引：31

作者：

Oppenheimer, Naomi ^{[1
]}

Diamant, Haim ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Sch Chem, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 25期

基金：

以色列科学基金会;

关键词：

PROTEIN DIFFUSION; ROTATIONAL DRAG; BROWNIAN-MOTION; LIQUID; MOBILITY; FLUID;

D O I：

10.1103/PhysRevLett.107.258102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. Because of the long-range, quasi-two-dimensional nature of membrane flows, these effects become significant at a low area fraction (below 1%) of immobile inclusions.

引用

页数：5

共 34 条

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