Condensed states of a semiflexible homopolymer: Ordered globules and toroids

I. R. Cooke; D. R.M. Williams

doi:10.1016/j.physa.2004.03.039

Condensed states of a semiflexible homopolymer: Ordered globules and toroids

I. R. Cooke, D. R.M. Williams^*

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

18 Citations (Scopus)

Abstract

We examine the condensed states for a semiflexible polymer in poor solvent as a function of stiffness, focusing on the transition region between globule and torus. Conservative estimates for the upper and lower bounds to the globule-torus transition region are found. These are then used to demonstrate that the polymer globule undergoes considerable changes to its overall morphology and internal packing arrangements for stiffness values outside this transition region. Using a variety of methods we characterize these globular structures as stiffness is varied.

Original language	English
Pages (from-to)	45-52
Number of pages	8
Journal	Physica A: Statistical Mechanics and its Applications
Volume	339
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physa.2004.03.039
Publication status	Published - 1 Aug 2004
Event	Proceedings of the International Conference New Materials - Canberra, Vic., Australia Duration: 3 Nov 2003 → 7 Nov 2003

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abstract = "We examine the condensed states for a semiflexible polymer in poor solvent as a function of stiffness, focusing on the transition region between globule and torus. Conservative estimates for the upper and lower bounds to the globule-torus transition region are found. These are then used to demonstrate that the polymer globule undergoes considerable changes to its overall morphology and internal packing arrangements for stiffness values outside this transition region. Using a variety of methods we characterize these globular structures as stiffness is varied.",

keywords = "Brownian dynamics simulation, DNA condensation, Phase transition, Semiflexible polymer, Toroids",

author = "Cooke, {I. R.} and Williams, {D. R.M.}",

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note = "Proceedings of the International Conference New Materials ; Conference date: 03-11-2003 Through 07-11-2003",

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AU - Cooke, I. R.

AU - Williams, D. R.M.

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Y1 - 2004/8/1

N2 - We examine the condensed states for a semiflexible polymer in poor solvent as a function of stiffness, focusing on the transition region between globule and torus. Conservative estimates for the upper and lower bounds to the globule-torus transition region are found. These are then used to demonstrate that the polymer globule undergoes considerable changes to its overall morphology and internal packing arrangements for stiffness values outside this transition region. Using a variety of methods we characterize these globular structures as stiffness is varied.

AB - We examine the condensed states for a semiflexible polymer in poor solvent as a function of stiffness, focusing on the transition region between globule and torus. Conservative estimates for the upper and lower bounds to the globule-torus transition region are found. These are then used to demonstrate that the polymer globule undergoes considerable changes to its overall morphology and internal packing arrangements for stiffness values outside this transition region. Using a variety of methods we characterize these globular structures as stiffness is varied.

KW - Brownian dynamics simulation

KW - DNA condensation

KW - Phase transition

KW - Semiflexible polymer

KW - Toroids

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U2 - 10.1016/j.physa.2004.03.039

DO - 10.1016/j.physa.2004.03.039

M3 - Conference article

SN - 0378-4371

VL - 339

SP - 45

EP - 52

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 1-2

Y2 - 3 November 2003 through 7 November 2003

ER -

Condensed states of a semiflexible homopolymer: Ordered globules and toroids

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