Microrheology of entangled f-actin solutions

M. L. Gardel; M. T. Valentine; J. C. Crocker; A. R. Bausch; D. A. Weitz

doi:10.1103/PhysRevLett.91.158302

Microrheology of entangled f-actin solutions

M. L. Gardel, M. T. Valentine, J. C. Crocker, A. R. Bausch, D. A. Weitz

Chair of Cellular Biophysics

Research output: Contribution to journal › Article › peer-review

287 Scopus citations

Abstract

We measure the viscoelasticity of entangled F-actin over length scales between [Formula presented] and [Formula presented] using one- and two-particle microrheology, and directly identify two distinct microscopic contributions to the elasticity. Filament entanglements lead to a frequency-independent elastic modulus over an extended frequency range of [Formula presented]; this is probed with one-particle microrheology. Longitudinal fluctuations of the filaments increase the elastic modulus between 0.1 and [Formula presented] at length scales up to the filament persistence length; this is probed by two-particle microrheology.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.91.158302
State	Published - 2003

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10.1103/PhysRevLett.91.158302

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title = "Microrheology of entangled f-actin solutions",

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AU - Valentine, M. T.

AU - Crocker, J. C.

AU - Bausch, A. R.

AU - Weitz, D. A.

PY - 2003

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VL - 91

JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Microrheology of entangled f-actin solutions

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