Klaus Kroy and Jens Glaser 2007 New J. Phys. 9 416 doi:10.1088/1367-2630/9/11/416
The glassy wormlike chain
Focus on Physics of the CytoskeletonKlaus Kroy1,2,3 and Jens Glaser1
Show affiliationsPart of Focus on Physics of the Cytoskeleton
We introduce a new model for the dynamics of a wormlike chain (WLC) in an environment that gives rise to a rough free energy landscape, which we name the glassy WLC. It is obtained from the common WLC by an exponential stretching of the relaxation spectrum of its long-wavelength eigenmodes, controlled by a single parameter 
. Predictions for pertinent observables such as the dynamic structure factor and the microrheological susceptibility exhibit the characteristics of soft glassy rheology and compare favourably with experimental data for reconstituted cytoskeletal networks and live cells. We speculate about the possible microscopic origin of the stretching, implications for the nonlinear rheology, and the potential physiological significance of our results.
- PACS
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87.16.A- Theory, modeling, and simulations
87.15.H- Dynamics of biomolecules
- Subjects
- Dates
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Issue 11 (November 2007)
Received 2 May 2007
Published 30 November 2007
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The glassy wormlike chain
Klaus Kroy and Jens Glaser 2007 New J. Phys. 9 416
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-
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U Mizutani et al 1987 J. Phys. F: Met. Phys. 17 257
-
First-principles quantum dynamics in interacting Bose gases: I. The positive P representation
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-
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-
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Summaries of articles in this issue
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