Scaling of F-Actin Network Rheology to Probe Single Filament Elasticity and Dynamics | Zendy

M. L. Gardel | Zendy; Jennifer H. Shin | Zendy; F. C. MacKintosh | Zendy; L. Mahadevan | Zendy; P. A. Matsudaira | Zendy; D. A. Weitz | Zendy

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Scaling of F-Actin Network Rheology to Probe Single Filament Elasticity and Dynamics

Author(s) -

M. L. Gardel,

Jennifer H. Shin,

F. C. MacKintosh,

L. Mahadevan,

P. A. Matsudaira,

D. A. Weitz

Publication year - 2004

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.93.188102

Subject(s) - viscoelasticity , rheology , physics , protein filament , scaling , elasticity (physics) , relaxation (psychology) , nonlinear system , stiffening , shear modulus , condensed matter physics , scaling law , materials science , thermodynamics , quantum mechanics , mathematics , geometry , composite material , psychology , social psychology

The macroscopic mechanical response of F-actin networks was explained quantitatively in terms of single-filament elasticity and dynamics. The linear viscoelasticity of cross-linked networks of F actin can be scaled onto a single master curve as a function of frequency, despite orders of magnitude variation in the elastic moduli. The nonlinear elastic response of the network was also probed by prestressing the networks with an external steady shear stress. The results show that the entropic effects of single filaments dominate the full range of mechanical and dynamical properties of F-actin networks

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