High-frequency stress relaxation in semiflexible polymer solutions and networks

G.H. Koenderink, M. Atakhorrami, F.C. Mac Kintosh, C. Schmidt

Research output: Contribution to JournalArticleAcademicpeer-review


We measure the linear viscoelasticity of sterically entangled and chemically cross-linked networks of actin filaments over more than five decades of frequency. The high-frequency response reveals rich dynamics unique to semiflexible polymers, including a previously unobserved relaxation due to rapid axial tension propagation. For high molecular weight, and for cross-linked gels, we obtain quantitative agreement with predicted shear moduli in both amplitude and frequency dependence. © 2006 The American Physical Society.
Original languageEnglish
Article number138307
JournalPhysical Review Letters
Issue number13
Publication statusPublished - 7 Apr 2006


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