Volume 123, Number 5, September 2018
|Number of page(s)||7|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||26 September 2018|
Systematic bottom-up theory for the viscoelastic response of worm-like chain networks
1 Fachbereich Physik, Freie Universität Berlin - Arnimallee 14, 14195 Berlin, Germany
2 Department of Physics, The University of Tokyo - Hongo, Tokyo 113-0033, Japan
Received: 1 June 2018
Accepted: 29 August 2018
Using the frequency-dependent force-extension response functions of single worm-like chains as the only input, the linear complex viscoelastic modulus of a polymeric network with given connectivity is derived from a systematic bottom-up theory via iterative coarse-graining. Choosing a cubic connectivity and accounting for random network orientation, we find excellent agreement with experimental data for actin networks under shear over the entire frequency range with the strength of the osmotic pressure that acts within the polymeric network as the only fitting parameter. In particular, we obtain a viscoelastic plateau regime at low frequencies and a crossover to an intermediate-frequency regime characterized by a power law behavior and an inhomogeneous shear deformation field.
PACS: 87.16.Ln – Cytoskeleton / 83.60.Bc – Linear viscoelasticity / 87.16.A- – Theory, modeling, and simulations
© EPLA, 2018
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.