R Peter et al 2008 New J. Phys. 10 035002 doi:10.1088/1367-2630/10/3/035002
Pattern formation in active cytoskeletal networks
Focus on Physics of the CytoskeletonR Peter, V Schaller, F Ziebert1 and W Zimmermann2
Show affiliationsPart of Focus on Physics of the Cytoskeleton
We present a one-dimensional model combining two of the main features of active biopolymer solutions that have only recently been investigated experimentally, namely the molecular motor driven active transport of filaments and the (visco-)elastic properties of filament networks held together by crosslinkers or entanglement effects. It is shown that the pattern forming mechanisms, associated with the motor-mediated transport of filaments, are substantially altered when coupled to a filament network: in the case of a permanent network, the long-range clustering of filaments changes either to stationary periodic filament density patterning or to propagating pulses. If the network is however viscoelastic, molecular motor activity can lead to traveling or standing filament density waves.
- PACS
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87.16.Ka Filaments, microtubules, their networks, and supramolecular assemblies
87.15.N- Properties of solutions of macromolecules
- Subjects
- Dates
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Issue 3 (March 2008)
Received 15 October 2007
Published 12 March 2008
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Pattern formation in active cytoskeletal networks
R Peter et al 2008 New J. Phys. 10 035002
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