Tube width fluctuations in F-actin solutions

We determine the statistics of the local tube width in F-actin solutions, beyond the usually reported mean value. Our experimental observations are explained by a segment fluid theory based on the binary collision approximation. In this systematic generalization of the standard mean-field approach,...

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Bibliographic Details
Published inPhysical review letters Vol. 105; no. 3; p. 037801
Main Authors Glaser, J, Chakraborty, D, Kroy, K, Lauter, I, Degawa, M, Kirchgessner, N, Hoffmann, B, Merkel, R, Giesen, M
Format Journal Article
LanguageEnglish
Published United States 16.07.2010
Subjects
Actins - chemistry
Microscopy, Confocal
Microscopy, Fluorescence
Pliability
Solutions - chemistry
Statistics as Topic
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Summary:We determine the statistics of the local tube width in F-actin solutions, beyond the usually reported mean value. Our experimental observations are explained by a segment fluid theory based on the binary collision approximation. In this systematic generalization of the standard mean-field approach, effective polymer segments interact via a potential representing the topological constraints. The analytically predicted universal tube width distribution with a stretched tail is in good agreement with the data.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.105.037801