Cross-link governed dynamics of biopolymer networks

C.P. Broedersz, S.M. Depken, N.Y. Yao, M.R. Pollak, D.A. Weitz, F.C. Mac Kintosh

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Abstract

Recent experiments show that networks of stiff biopolymers cross-linked by transient linker proteins exhibit complex stress relaxation, enabling network flow at long times. We present a model for the dynamics controlled by cross-links in such networks. We show that a single microscopic time scale for cross-linker unbinding leads to a broad spectrum of macroscopic relaxation times and a shear modulus G∼ω
Original languageEnglish
Pages (from-to)238101
Number of pages4
JournalPhysical Review Letters
Volume105
Issue number23
DOIs
Publication statusPublished - 2010

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