Microrheology probes length scale dependent rheology.

Journal Article (Journal Article)

We exploit the power of microrheology to measure the viscoelasticity of entangled F-actin solutions at different length scales from 1 to 100 microm over a wide frequency range. We compare the behavior of single probe-particle motion to that of the correlated motion of two particles. By varying the average length of the filaments, we identify fluctuations that dissipate diffusively over the filament length. These provide an important relaxation mechanism of the elasticity between 0.1 and 30 rad/sec.

Full Text

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Duke Authors

Hoffman, Brenton D.

Cited Authors

Liu, J; Gardel, ML; Kroy, K; Frey, E; Hoffman, BD; Crocker, JC; Bausch, AR; Weitz, DA

Published Date

March 2006

Published In

Physical Review Letters

Volume / Issue

96 / 11

Start / End Page

118104 -

PubMed ID

16605878

Electronic International Standard Serial Number (EISSN)

1079-7114

International Standard Serial Number (ISSN)

0031-9007

Digital Object Identifier (DOI)

10.1103/physrevlett.96.118104

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