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Deformation of cross-linked semiflexible polymer networks.

Deformation of cross-linked semiflexible polymer networks.

Authors :
Head DA
Levine AJ
MacKintosh FC
Source :
Physical review letters [Phys Rev Lett] 2003 Sep 05; Vol. 91 (10), pp. 108102. Date of Electronic Publication: 2003 Sep 05.
Publication Year :
2003

Abstract

Networks of filamentous proteins play a crucial role in cell mechanics. These cytoskeletal networks, together with various cross-linking and other associated proteins largely determine the (visco)elastic response of cells. In this Letter we study a model system of cross-linked, stiff filaments in order to explore the connection between the microstructure under strain and the macroscopic response of cytoskeletal networks. We find two distinct regimes as a function primarily of cross-link density and filament rigidity: one characterized by affine deformation and one by nonaffine deformation. We characterize the crossover between these two.

Details

Language :
English
ISSN :
0031-9007
Volume :
91
Issue :
10
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
14525510
Full Text :
https://doi.org/10.1103/PhysRevLett.91.108102