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Physik - Open Access LMU - Teil 01/02 Podcast
Tension dynamics and viscoelasticity of extensible wormlike chains

Tension dynamics and viscoelasticity of extensible wormlike chains

Physik - Open Access LMU - Teil 01/02 vor 16 Jahren

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The dynamic response of prestressed semiflexible biopolymers is
characterized by the propagation and relaxation of tension, which
arises due to the near inextensibility of a stiff backbone. It is
coupled to the dynamics of contour length stored in thermal
undulations but also to the local relaxation of elongational
strain. We present a systematic theory of tension dynamics for
stiff yet extensible wormlike chains. Our results show that even
moderate prestress gives rise to distinct Rouse-like extensibility
signatures in the high-frequency viscoelastic response.