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Updated: Jun 8, 2026

Using Microfluidics and Fluorescence Microscopy to Study the Assembly Dynamics of Single Actin Filaments and Bundles
Published on: May 5, 2022
Tube width fluctuations in F-actin solutions
J Glaser1, D Chakraborty, K Kroy
1Institut für Theoretische Physik, Universität Leipzig, PF 100920, 04009 Leipzig, Germany. jens.glaser@itp.uni-leipzig.de
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. 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.
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