TY  - JOUR
AU  - Lamura, A.
AU  - Burkhardt, T. W.
AU  - Gompper, G.
TI  - Helical polymer in cylindrical confining geometries
JO  - Physical review / E
VL  - 70
IS  - 5
SN  - 1539-3755
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-41514
SP  - 051804
PY  - 2004
N1  - Record converted from VDB: 12.11.2012
AB  - Using an algorithm for simulating equilibrium configurations, we study a fluctuating helical polymer either (i) contained in a cylindrical pore or (ii) wound around a cylindrical rod. We work in the regime where both the contour length and the persistence length of the helical polymer are much larger than the diameter of the cylinder. In case (i) we calculate the free energy of confinement and interpret it in terms of a wormlike chain in a pore with an effective diameter that depends on the parameters of the helix. In case (ii) we consider the possibility that one end of the helical polymer escapes from the rod and wanders away. The average numbers of turns at which the helix escapes or intersects the rod are measured in the simulations, as a function of the pitch p(o). The behavior for large and small p(o) is explained with simple scaling arguments.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000225970500068
DO  - DOI:10.1103/PhysRevE.70.051804
UR  - https://juser.fz-juelich.de/record/41514
ER  -