Volume 47, Number 2, July II 1999
|Page(s)||171 - 174|
|Section||Atomic and molecular physics|
|Published online||01 September 2002|
Dynamics of taut DNA chains
Laboratoire PCC, Institut Curie 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
2 Collège de France - 11 place Marcellin Berthelot, 75005 Paris Cedex 05, France
Accepted: 12 May 1999
We discuss the dynamics of stretched DNA chains, subjected to a tension force f, in a “taut” regime where (lp0 being the unperturbed persistence length). We deal with two variables: the local transverse displacements u, and the longitudinal position of a monomer . The variables u and follow two distinct Rouse equations, with diffusion coefficients (where η is the solvent viscosity) and . We apply these ideas to a discussion of various transient regimes.
PACS: 36.20.-r – Macromolecules and polymer molecules / 87.15.-v – Biomolecules: structure and physical properties
© EDP Sciences, 1999
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