This article has an erratum: [https://doi.org/10.1209/0295-5075/88/49901]
Volume 87, Number 3, August 2009
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||24 August 2009|
Plectoneme creation reduces the rotational friction of a polymer
Yukawa Institute for Theoretical Physics, Kyoto University - Kyoto 606-8502, Japan
2 Department of Physics, Technical University Munich - 85748 Garching, Germany, EU
Accepted: 15 July 2009
The torsional dynamics of a semiflexible polymer with a contour length L larger than its persistence length Lp that is rotated at fixed frequency at one end is studied by scaling arguments and hydrodynamic simulations. We find a non-equilibrium transition at a critical frequency : In the linear regime, , axial spinning is the dominant dissipation mode. In the non-linear regime, , the twist dissipation mode involves the continuous creation of plectonemes close to the driven end and the rotational friction is substantially reduced.
PACS: 87.15.H- – Dynamics of biomolecules / 87.16.Ka – Filaments, microtubules, their networks, and supramolecular assemblies / 47.15.G- – Low-Reynolds-number (creeping) flows
© EPLA, 2009
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.