Generic phases of cross-linked active gels: Relaxation, Oscillation and Contractility

Details Generic phases of cross-linked active gels: Relaxation, Oscillation and Contractility Generic phases of cross-linked active gels: Relaxation, Oscillation and Contractility

2011-08-30

arxiv.org/abs/1108.5999v2

EPL 96 (2011) 58004

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 4 figures, EPL format

Scientific paper

We study analytically and numerically a generic continuum model of an isotropic active solid with internal stresses generated by non-equilibrium `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.

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