Attempt time of a spherically confined polymer to find a nano-pore
Paper ID : 1477-ICNS
seyyed mohammad hoseinpoor, Narges Nikoofard *
Institute of Nano-science and Nano-technology, University of Kashan, Kashan, Iran
Polymer escape and ejection from a confining geometry has attracted much interest in recent years, due to its correspondence to viral genome ejection. The end monomers of a confined polymer need a characteristic time to find a nano-pore located on the surface of the confining geometry. This characteristic time -here called attempt time- is not investigated in the literature. In this manuscript, a theoretical framework is developed to describe the attempt time for flexible and semi-flexible polymers. Langevin Dynamics (LD) simulations of a polymer confined in a sphere are also performed to investigate the theory. The simulation results are in good agreement with the theory. It is shown that dependence of the attempt time is described by the relations τ∝R^3.7 and τ∝R^2.7 in cases that the radius of the sphere is larger or smaller than the persistence length of the polymer, respectively.
Confined Polymer; Ejection; First Passage Time; Semi-flexible Polymer; LD simulations
Status : Abstract Accepted (Poster Presentation)