Translocation and insertion of an amphiphilic polymer.

作者信息

Tsuchiya Satoshi, Matsuyama Akihiko

机构信息

Department of Bioscience and Bioinformatics, Faculty of Computer Science and System Engineering, Kyushu Institute of Technology, Kawazu 680-4, Iizuka, Fukuoka 820-8502, Japan.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Jul;76(1 Pt 1):011801. doi: 10.1103/PhysRevE.76.011801. Epub 2007 Jul 2.

DOI:10.1103/PhysRevE.76.011801

PMID:17677478

Abstract

Translocation of amphiphilic polymers (random and block copolymers), consisting of hydrophilic and hydrophobic monomers, threading a pore is studied by using a three-dimensional dynamic Monte Carlo simulation. We find that there is a "translocation-insertion" threshold in the fraction of hydrophobic monomers on an amphiphilic polymer. The translocation time is given by simple scaling laws and increases with increasing the fraction of hydrophobic monomers.

摘要