Ontology highlight
ABSTRACT:
SUBMITTER: Kikuchi N
PROVIDER: S-EPMC2785242 | biostudies-literature | 2009 Nov
REPOSITORIES: biostudies-literature
Kikuchi Norio N Ehrlicher Allen A Koch Daniel D Käs Josef A JA Ramaswamy Sriram S Rao Madan M
Proceedings of the National Academy of Sciences of the United States of America 20091109 47
We present a generic theory for the dynamics of a stiff filament under tension, in an active medium with orientational correlations, such as a microtubule in contractile actin. In sharp contrast to the case of a passive medium, we find the filament can stiffen, and possibly oscillate or buckle, depending on both the contractile or tensile nature of the activity and the filament-medium anchoring interaction. We also demonstrate a strong violation of the fluctuation-dissipation (FD) relation in th ...[more]