Abstract
We exploit the power of microrheology to measure the viscoelasticity of entangled F-actin solutions at different length scales from 1 to 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 .
- Received 1 October 2005
DOI:https://doi.org/10.1103/PhysRevLett.96.118104
©2006 American Physical Society