Rheology of two-dimensional F-actin networks associated with a lipid interface

被引：14

作者：

Walder, Robert ^{[1
]}

Levine, Alex J. ^{[2
,3
]}

Dennin, Michael ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Calif Nanosyst Inst, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW E | 2008年 / 77卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevE.77.011909

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report on the surface rheology of cross-linked F-actin networks associated with a lipid monolayer at the air-water interface of a Langmuir monolayer. The rheological measurements are made using a Couette cell. These data demonstrate that the network has a finite elastic modulus that grows as a function of the cross-linking concentration. We also note that under steady-state flow the system behaves as a power-law fluid in which the effective viscosity decreases with imposed shear.

引用

页数：8

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