Generic phases of cross-linked active gels: Relaxation, oscillation and contractility

被引：18

作者：

Banerjee, S. ^{[1
]}

Liverpool, T. B. ^{[2
]}

Marchetti, M. C. ^{[1
,3
]}

机构：

[1] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA

[2] Univ Bristol, Dept Math, Bristol BS8 1TW, Avon, England

[3] Syracuse Univ, Syracuse Biomat Inst, Syracuse, NY 13244 USA

来源：

EPL | 2011年 / 96卷 / 05期

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

NONLINEAR ELASTICITY; SKELETAL MYOFIBRILS; TENSION; LENGTH; MOTORS;

D O I：

10.1209/0295-5075/96/58004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study analytically and numerically a generic continuum model of an isotropic active solid with internal stresses generated by nonequilibrium "active" mechano-chemical reactions. Our analysis shows that the gel can be tuned through three classes of dynamical states by increasing motor activity: a constant unstrained state of homogeneous density, a state where the local density exhibits sustained oscillations, and a steady state which is spontaneously contracted, with a uniform mean density. Copyright (C) EPLA, 2011

引用

页数：6