TY - JOUR AU - Glaser, J. AU - Chakroborty, D. AU - Kroy, K. AU - Lauter, I. AU - Degawa, M. AU - Kirchgeßner, N. AU - Hoffmann, B. AU - Merkel, R. AU - Giesen, M. TI - Tube Width Fluctuations in F-actin Solutions JO - Physical review letters VL - 105 SN - 0031-9007 CY - College Park, Md. PB - APS M1 - PreJuSER-12785 SP - 037801 PY - 2010 N1 - This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through FOR 877 and the Leipzig School of Natural Sciences-Building with Molecules and Nano-objects. M. D. acknowledges financial support by the Alexander von Humboldt foundation. AB - 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. KW - J (WoSType) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000279820500013 DO - DOI:10.1103/PhysRevLett.105.037801 UR - https://juser.fz-juelich.de/record/12785 ER -