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, 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.
Glaser
J
J
Institut für Theoretische Physik, Universität Leipzig, PF 100920, 04009 Leipzig, Germany. jens.glaser@itp.uni-leipzig.de
Chakraborty
D
D
Kroy
K
K
Lauter
I
I
Degawa
M
M
Kirchgessner
N
N
Hoffmann
B
B
Merkel
R
R
Giesen
M
M
D000199:Actins / Q000737:chemistry*; D018613:Microscopy, Confocal; D008856:Microscopy, Fluorescence; D018583:Pliability; D012996:Solutions / Q000737:chemistry; D013223:Statistics as Topic
D000199:Actins; D012996:Solutions