Entanglement, elasticity and viscous relaxation of actin solutions

Details Entanglement, elasticity and viscous relaxation of actin solutions Entanglement, elasticity and viscous relaxation of actin solutions

1997-12-03

arxiv.org/abs/cond-mat/9712037v3

Phys. Rev. Lett. 81, 2614 (1998)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 4 figures, published version

Scientific paper

10.1103/PhysRevLett.81.2614

We have investigated the viscosity and the plateau modulus of actin solutions with a magnetically driven rotating disc rheometer. For entangled solutions we observed a scaling of the plateau modulus versus concentration with a power of 7/5. The measured terminal relaxation time increases with a power 3/2 as a function of polymer length. We interpret the entanglement transition and the scaling of the plateau modulus in terms of the tube model for semiflexible polymers.

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