Free energy landscape for the translocation of polymer through an interacting pore

The Journal of Chemical Physics
Li-Zhen SunMeng-Bo Luo

Abstract

Free energy landscapes for polymer chain translocating through an interacting pore are calculated by using exact enumeration method. A potential barrier exists at weak attractive or repulsive polymer-pore interaction and it changes to a potential well with the increase in the attraction. The result reveals that there is a free translocation point where polymer is free of energy barrier. Using the free energy landscape, the translocation time tau for polymer worming through the pore and the migration time tau(m) for polymer migrating from cis side to trans side are calculated with the Fokker-Plank equation. It shows that a moderate attractive polymer-pore interaction accelerates the migration of polymer from cis side to trans side.

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Citations

Sep 15, 2010·Physical Chemistry Chemical Physics : PCCP·Li-Zhen SunMeng-Bo Luo
Jan 25, 2013·Physical Chemistry Chemical Physics : PCCP·Meng-Bo Luo, Chao Wang
May 10, 2013·The Journal of Chemical Physics·James M Polson, Anthony C M McCaffrey
Aug 2, 2013·The Journal of Chemical Physics·Shuang ZhangMeng-Bo Luo
Nov 11, 2011·The Journal of Chemical Physics·Wei-Ping CaoMeng-Bo Luo
Feb 8, 2013·The Journal of Chemical Physics·Chao WangMeng-Bo Luo
Jan 17, 2013·The Journal of Chemical Physics·James M PolsonAnthony McCaffrey
Dec 24, 2015·The Journal of Chemical Physics·Chao WangMeng-Bo Luo
Nov 16, 2018·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Li-Zhen SunMeng-Bo Luo
Dec 21, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Li-Zhen SunMeng-Bo Luo
Oct 9, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Li-Zhen Sun, Meng-Bo Luo
Jun 27, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Wei-Ping CaoMeng-Bo Luo
Jul 25, 2017·The Journal of Chemical Physics·Meng-Bo LuoLi-Zhen Sun
Jul 17, 2018·The Journal of Chemical Physics·Li-Zhen SunHaibin Li
Sep 6, 2014·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Li-Zhen Sun, Meng-Bo Luo
Jan 17, 2019·The Journal of Chemical Physics·Li-Zhen SunHaibin Li
Jan 3, 2019·The Journal of Chemical Physics·Seulki Kwon, Bong June Sung
Oct 4, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Meng-Bo Luo, Wei-Ping Cao
May 15, 2021·Biochimica Et Biophysica Acta. Biomembranes·Joseph W F RobertsonJoseph E Reiner
Apr 17, 2019·The Journal of Physical Chemistry. B·Bappa Ghosh, Srabanti Chaudhury
Dec 6, 2017·The Journal of Physical Chemistry. B·Bappa Ghosh, Srabanti Chaudhury

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