Dresden 2009 – scientific programme

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BP: Fachverband Biologische Physik

BP 2: Biopolymers and Biomaterials (joint session BP/CPP)

BP 2.1: Talk

Monday, March 23, 2009, 11:00–11:15, ZEU 260

Radial distribution function for confined semiflexible polymers — •Florian Thüroff, Frederik Wagner, and Erwin Frey — Arnold Sommerfeld Center für theoretische Physik, Ludwig-Maximilians-Universität München

The crowded environment of living cells strongly constrains the conformational degrees of freedom of fluctuating biopolymers. Recent experimental setups achieved to confine single polymers to narrow channels and to directly observe the statistical properties of these chains. We present a theoretical calculation of the radial distribution function of confined semiflexible polymers in the weakly bending limit, for the model case of a parabolic confining potential. Special emphasis has been put on a proper treatment of the boundary conditions. We compare our analytical expressions to numerical data from Monte Carlo simulations and find perfect agreement.