| Issue |
Europhys. Lett.
Volume 47, Number 2, July II 1999
|
|
|---|---|---|
| Page(s) | 171 - 174 | |
| Section | Atomic and molecular physics | |
| DOI | https://doi.org/10.1209/epl/i1999-00368-1 | |
| Published online | 01 September 2002 | |
Dynamics of taut DNA chains
1
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
Received:
30
October
1998
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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