Excluded volume effects on semiflexible ring polymers

Abstract

Two-dimensional semiflexible polymer rings are studied both by imaging circular DNA adsorbed on a mica surface and by Monte Carlo simulations of phantom polymers as well as of polymers with finite thickness. Comparison of size and shape of the different models over the full range of flexibilities shows that excluded volume caused by finite thickness induces an anisotropic increase of the main axes of the conformations, a change of shape, accomplished by an enhanced correlation along the contour.

5 pages, 4 figures, version as published in Nano Letters

References in corpus (6)

• Kinks, rings, and rackets in filamentous structures
• Scaling exponents and probability distributions of DNA end-to-end distance
• Fractal Dimension and Localization of DNA Knots
• Shapes of Semiflexible Polymer Rings
• Conformation of Circular DNA in 2 Dimensions
• Fluctuating semiflexible polymer ribbon constrained to a ring

Cited by in corpus (7)

• Numerical study of linear and circular model DNA chains confined in a slit: metric and topological properties
• Structure and dynamics of ring polymers: entanglement effects because of solution density and ring topology
• Dynamics of a Semiflexible Polymer or Polymer Ring in Shear Flow
• Buckling of stiff polymer rings in weak spherical confinement
• Conformational properties of complex polymers: rosette versus star-like structures
• Excluded volume effects on tangentially driven active ring polymers
• Stiffer double-stranded DNA in two-dimensional confinement due to bending anisotropy