%0 Journal Article
%T Effects of Shape of Crowders on Dynamics of a Polymer Chain Closure
%A Bai cheng Xi
%A Dong hua Zhang
%A Jia jun Wang
%A Wan cheng Yu
%J Chinese Journal Of Chemical Physics
%@ 1003-7713
%V 30
%N 3
%D 2017
%P 343-347
%K Loop formation;Crowding effects;Shape polydispersity
%X Using 3D Langevin dynamics simulations,we investigate the effects of the shape of crowders on the dynamics of a polymer chain closure.The chain closure in spherical crowders is dominated by the increased medium viscosity so that it gets slower with the increasing volume fraction of crowders.By contrast,the dynamics of chain closure becomes very complicated with increasing volume fraction of crowders in spherocylindrical crowders.Notably,the mean closure time is found to have a dramatic decrease at a range of volume fraction of crowders 0.36-0.44.We then elucidate that an isotropic to nematic transition of spherocylindrical crowders at this range of volume fraction of crowders is responsible for the unexpected dramatic decrease in the mean closure time.
%R 10.1063/1674-0068/30/cjcp1703024
%U http://cjcp.ustc.edu.cn/hxwlxb_en/ch/reader/view_abstract.aspx
%1 JIS Version 3.0.0