Effect of Interaction upon Translocation of Confined Polymer Chain Through Nanopore

被引：3

作者：

Wang, Yao ^{[1
]}

Xie, Yong-jun ^{[1
]}

Yang, Hai-yang ^{[1
]}

Zhang, Xing-yuan ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL PHYSICS | 2010年 / 23卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Monte Carlo simulation; Polymer translocation; Interaction; Free energy barrier; MONTE-CARLO; FREE-ENERGY; DNA; MEMBRANE; CHANNEL; PORE; MOLECULES; POLYELECTROLYTES; SIMULATION; DYNAMICS;

D O I：

10.1088/1674-0068/23/03/313-316

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The effect of the interaction between nanopore and chain monomer on the translocation of a single polymer chain confined in a finite size square through an interacting nanopore to a large space has been studied by two-dimensional bond fluctuation model with Monte Carlo simulation. Results indicate that the free energy barrier before the successful translocation of the chain depends linearly on the chain, length as well as the nanopore length for different pore-polymer interaction, and the attractive interaction reduces the free energy barrier, leading to the reduction of the average trapping time.

引用

页码：313 / 316

页数：4