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American Physical Society, Physical Review Letters, 3(105)

DOI: 10.1103/physrevlett.105.037801

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Tube Width Fluctuations in F-Actin Solutions

Journal article published in 2009 by J. Glaser, D. Chakraborty, K. Kroy, I. Lauter, M. Degawa, N. Kirchgeßner, B. Hoffmann, R. Merkel ORCID, M. Giesen ORCID
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This paper is available in a repository.

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Abstract

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 (BCA). 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. ; Comment: Final version, 5 pages, 4 figures