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Coupling of transverse and longitudinal response in stiff polymers

Item Type:Article
Title:Coupling of transverse and longitudinal response in stiff polymers
Creators Name:Obermayer, B. and Hallatschek, O.
Abstract:The time-dependent transverse response of stiff inextensible polymers is well understood on the linear level, where transverse and longitudinal displacements evolve independently. We show that for times beyond a characteristic time tf, longitudinal friction considerably weakens the response compared to the widely used linear response predictions. The corresponding feedback mechanism is explained by scaling arguments and quantified by a systematic theory. Our scaling laws and exact solutions for the transverse response apply to cytoskeletal filaments as well as DNA under tension.
Keywords:Semiflexible Polymers, Thermal Fluctuations, Actin Networks, Chains
Source:Physical Review Letters
Publisher:American Physical Society (U.S.A.)
Page Range:098302
Date:31 August 2007
Official Publication:https://doi.org/10.1103/PhysRevLett.99.098302
PubMed:View item in PubMed

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