title: Tube width fluctuations in F-actin solutions.
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.
authors.affiliation: Institut für Theoretische Physik, Universität Leipzig, PF 100920, 04009 Leipzig, Germany. jens.glaser@itp.uni-leipzig.de
authors.forename: J
authors.initials: J
authors.lastname: Glaser
authors.forename: D
authors.initials: D
authors.lastname: Chakraborty
authors.forename: K
authors.initials: K
authors.lastname: Kroy
authors.forename: I
authors.initials: I
authors.lastname: Lauter
authors.forename: M
authors.initials: M
authors.lastname: Degawa
authors.forename: N
authors.initials: N
authors.lastname: Kirchgessner
authors.forename: B
authors.initials: B
authors.lastname: Hoffmann
authors.forename: R
authors.initials: R
authors.lastname: Merkel
authors.forename: M
authors.initials: M
authors.lastname: Giesen
mesh_terms: D000199:Actins / Q000737:chemistry*; D018613:Microscopy, Confocal; D008856:Microscopy, Fluorescence; D018583:Pliability; D012996:Solutions / Q000737:chemistry; D013223:Statistics as Topic
chemical_list: D000199:Actins; D012996:Solutions