Collapse of stiff polyelectrolytes due to counterion fluctuations

Ramin Golestanian; Mehran Kardar; Tanniemola B. Liverpool

Collapse of stiff polyelectrolytes due to counterion fluctuations

Ramin Golestanian^*, Mehran Kardar, Tanniemola B. Liverpool

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

122 Citations (Scopus)

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 (intermediate) length scales may signal a collapse to globule (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.

Original language	English
Pages (from-to)	4456-4459
Number of pages	4
Journal	Physical Review Letters
Volume	82
Issue number	22
Publication status	Published - 31 May 1999

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Bristol BioDesign Institute

Keywords

synthetic biology

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title = "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 (intermediate) length scales may signal a collapse to globule (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.",

keywords = "synthetic biology",

author = "Ramin Golestanian and Mehran Kardar and Liverpool, \{Tanniemola B.\}",

year = "1999",

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day = "31",

language = "English",

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pages = "4456--4459",

journal = "Physical Review Letters",

issn = "0031-9007",

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T1 - Collapse of stiff polyelectrolytes due to counterion fluctuations

AU - Golestanian, Ramin

AU - Kardar, Mehran

AU - Liverpool, Tanniemola B.

PY - 1999/5/31

Y1 - 1999/5/31

N2 - 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 (intermediate) length scales may signal a collapse to globule (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.

AB - 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 (intermediate) length scales may signal a collapse to globule (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.

KW - synthetic biology

UR - https://www.scopus.com/pages/publications/18344375341

M3 - Article (Academic Journal)

AN - SCOPUS:18344375341

SN - 0031-9007

VL - 82

SP - 4456

EP - 4459

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

ER -

Collapse of stiff polyelectrolytes due to counterion fluctuations

Abstract

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