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Journal article

Collapse of Stiff Polyelectrolytes due to Counterion Fluctuations

Abstract:
The effective elasticity of highly charged stiff polyelectrolytes is studied in the presence of counterions, with and without added salt. The rigid polymer conformations may become unstable due to an effective attraction induced by counterion density fluctuations. Instabilities at the longest, or intermediate length scales may signal collapse to globule, or necklace states, respectively. In the presence of added-salt, a generalized electrostatic persistence length is obtained, which has a nontrivial dependence on the Debye screening length.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevLett.82.4456

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Phys. Rev. Lett.
Volume:
82
Issue:
22
Pages:
4456
Publication date:
1999-01-26
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
162305
Language:
English
Keywords:
Pubs id:
pubs:162305
UUID:
uuid:ce8238f8-4bce-400e-9804-066ff570a5d0
Local pid:
pubs:162305
Deposit date:
2012-12-19

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