Journal Article

PreJuSER-3838

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Direct observation of the tube model in F-actin solutions: Tube dimensions and curvatures

Romanowska, M. ; Hinsch, H. ; Kirchgeßner, N.FZJ* ; Giesen, M.FZJ* ; Degawa, M.FZJ* ; Hoffmann, B.FZJ* ; Frey, E.FZJ* ; Merkel, R.FZJ*

2009
EDP Sciences Les Ulis

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/22965  doi:10.1209/0295-5075/86/26003

Abstract: Mutual uncrossability of polymers generates topological constraints on their conformations and dynamics, which are generally described using the tube model. We imaged confinement tubes for individual polymers within a F-actin solution by sampling over many successive micrographs of fluorescently labeled probe filaments. The resulting average tube width shows the predicted scaling behavior. Unexpectedly, we found an exponential distribution of tube curvatures which is attributed to transient entropic trapping in network void spaces. Copyright (C) EPLA, 2009

Keyword(s): J

Note: We thank I. LAUTER, IBN-4, for insightful discussions of the manuscript and control measurements. EF and HH acknowledge support from the DFG through SFB 486, from the German Excellence Initiative via the NIM program, and from the Elite Network of Bavaria through the NBT program. MD is grateful for support from the Alexander von Humboldt Foundation.

---

Contributing Institute(s):

1. Biomechanik (IBN-4)

Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2009

---

Database coverage:
; JCR ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---