Fluctuating semiflexible polymer ribbon constrained to a ring

K. Alim, E. Frey

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

17 Zitate (Scopus)

Abstract

Twist stiffness and an asymmetric bending stiffness of a polymer or a polymer bundle is captured by the elastic ribbon model. We investigate the effects a ring geometry induces to a thermally fluctuating ribbon, finding bend-bend coupling in addition to twist-bend coupling. Furthermore, due to the geometric constraint the polymer's effective bending stiffness increases. A new parameter for experimental investigations of polymer bundles is proposed: the mean square diameter of a ribbonlike ring, which is determined analytically in the semiflexible limit. Monte Carlo simulations are performed which affirm the model's prediction up to high flexibility.

OriginalspracheEnglisch
Seiten (von - bis)185-191
Seitenumfang7
FachzeitschriftEuropean Physical Journal E
Jahrgang24
Ausgabenummer2
DOIs
PublikationsstatusVeröffentlicht - Okt. 2007
Extern publiziertJa

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