| Issue |
EPL
Volume 96, Number 5, December 2011
|
|
|---|---|---|
| Article Number | 58004 | |
| Number of page(s) | 6 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/96/58004 | |
| Published online | 22 November 2011 | |
Generic phases of cross-linked active gels: Relaxation, oscillation and contractility
1
Physics Department, Syracuse University - Syracuse, NY 13244-1130, USA
2
Department of Mathematics, University of Bristol - University Walk, Clifton, Bristol BS8 1TW, UK, EU
3
Syracuse Biomaterials Institute, Syracuse University - Syracuse, NY 13244-1130, USA
Received:
30
August
2011
Accepted:
12
October
2011
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.
PACS: 87.16.Ka – Filaments, microtubules, their networks, and supramolecular assemblies / 87.10.-e – General theory and mathematical aspects
© EPLA, 2011
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