Excluded volume effects on semiflexible ring polymers

Fabian Drube; Karen Alim; Guillaume Witz; Giovanni Dietler; Erwin Frey

doi:10.1021/nl1003575

Excluded volume effects on semiflexible ring polymers

Fabian Drube, Karen Alim, Guillaume Witz, Giovanni Dietler, Erwin Frey

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Two-dimensional semiflexible polymer rings are studied both by imaging circular DNA adsorbed on a mica surface and by Monte Carlo simulations of phantom polymers as well as of polymers with finite thickness. Comparison of size and shape of the different models over the full range of flexibilities shows that excluded volume caused by finite thickness induces an anisotropic increase of the main axes of the conformations, a change of shape, accomplished by an enhanced correlation along the contour.

Original language	English
Pages (from-to)	1445-1449
Number of pages	5
Journal	Nano Letters
Volume	10
Issue number	4
DOIs	https://doi.org/10.1021/nl1003575
State	Published - 14 Apr 2010
Externally published	Yes

Keywords

Confinement
DNA
Excluded volume
Polymer rings
Semiflexible polymers

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10.1021/nl1003575

Cite this

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AU - Drube, Fabian

AU - Alim, Karen

AU - Witz, Guillaume

AU - Dietler, Giovanni

AU - Frey, Erwin

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Y1 - 2010/4/14

N2 - Two-dimensional semiflexible polymer rings are studied both by imaging circular DNA adsorbed on a mica surface and by Monte Carlo simulations of phantom polymers as well as of polymers with finite thickness. Comparison of size and shape of the different models over the full range of flexibilities shows that excluded volume caused by finite thickness induces an anisotropic increase of the main axes of the conformations, a change of shape, accomplished by an enhanced correlation along the contour.

AB - Two-dimensional semiflexible polymer rings are studied both by imaging circular DNA adsorbed on a mica surface and by Monte Carlo simulations of phantom polymers as well as of polymers with finite thickness. Comparison of size and shape of the different models over the full range of flexibilities shows that excluded volume caused by finite thickness induces an anisotropic increase of the main axes of the conformations, a change of shape, accomplished by an enhanced correlation along the contour.

KW - Confinement

KW - DNA

KW - Excluded volume

KW - Polymer rings

KW - Semiflexible polymers

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JO - Nano Letters

JF - Nano Letters

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Excluded volume effects on semiflexible ring polymers

Abstract

Keywords

Access to Document

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