The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes
Using the dynamic Monte Carlo method, we investigate dynamics of semiflexible polymer translocation through a nanopore into laterally unbounded region between two parallel flat membranes with separation R in presence of an electric field inside the pore. The average translocation time τ initially de...
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doaj-1768d4fad46d411781bb7ce5191a694b2020-11-25T00:22:42ZengMDPI AGPolymers2073-43602016-09-018933210.3390/polym8090332polym8090332The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat MembranesZhi-Yong Yang0Ai-Hua Chai1Yong-Fu Yang2Xiao-Mao Li3Ping Li4Run-Ying Dai5Department of Physics, Jiangxi Agricultural University, Nanchang 330045, ChinaCollege of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing 314001, ChinaDepartment of Physics, Jiangxi Agricultural University, Nanchang 330045, ChinaDepartment of Physics, Jiangxi Agricultural University, Nanchang 330045, ChinaDepartment of Physics, Jiangxi Agricultural University, Nanchang 330045, ChinaDepartment of Chemistry, Jiangxi Agricultural University, Nanchang 330045, ChinaUsing the dynamic Monte Carlo method, we investigate dynamics of semiflexible polymer translocation through a nanopore into laterally unbounded region between two parallel flat membranes with separation R in presence of an electric field inside the pore. The average translocation time τ initially decreases rapidly with increase of R in the range of R < 10 and then almost keeps constant for R ≥ 10, and the decline range increases with increase of dimensionless bending stiffness κ. We mainly study the effect of chain length N, κ and electric field strength E on the translocation process for R = 5. The translocation dynamics is significantly altered in comparison to an unconfined environment. We find τ ~ Nα, where the exponent α increases with increase of E for small κ. α initially increases slowly with increase of E and then keeps constant for moderate κ. α decreases with increase of E for large κ. However, α decreases with increase of κ under various E. In addition, we find τ ~ κβ. β decreases with increase of N under various E. These behaviors are interpreted in terms of the probability distribution of translocation time and the waiting time of an individual monomer segment passing through the pore during translocation.http://www.mdpi.com/2073-4360/8/9/332Monte Carlo methodsemiflexible polymertranslocationscaling law |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhi-Yong Yang Ai-Hua Chai Yong-Fu Yang Xiao-Mao Li Ping Li Run-Ying Dai |
spellingShingle |
Zhi-Yong Yang Ai-Hua Chai Yong-Fu Yang Xiao-Mao Li Ping Li Run-Ying Dai The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes Polymers Monte Carlo method semiflexible polymer translocation scaling law |
author_facet |
Zhi-Yong Yang Ai-Hua Chai Yong-Fu Yang Xiao-Mao Li Ping Li Run-Ying Dai |
author_sort |
Zhi-Yong Yang |
title |
The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes |
title_short |
The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes |
title_full |
The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes |
title_fullStr |
The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes |
title_full_unstemmed |
The Semiflexible Polymer Translocation into Laterally Unbounded Region between Two Parallel Flat Membranes |
title_sort |
semiflexible polymer translocation into laterally unbounded region between two parallel flat membranes |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2016-09-01 |
description |
Using the dynamic Monte Carlo method, we investigate dynamics of semiflexible polymer translocation through a nanopore into laterally unbounded region between two parallel flat membranes with separation R in presence of an electric field inside the pore. The average translocation time τ initially decreases rapidly with increase of R in the range of R < 10 and then almost keeps constant for R ≥ 10, and the decline range increases with increase of dimensionless bending stiffness κ. We mainly study the effect of chain length N, κ and electric field strength E on the translocation process for R = 5. The translocation dynamics is significantly altered in comparison to an unconfined environment. We find τ ~ Nα, where the exponent α increases with increase of E for small κ. α initially increases slowly with increase of E and then keeps constant for moderate κ. α decreases with increase of E for large κ. However, α decreases with increase of κ under various E. In addition, we find τ ~ κβ. β decreases with increase of N under various E. These behaviors are interpreted in terms of the probability distribution of translocation time and the waiting time of an individual monomer segment passing through the pore during translocation. |
topic |
Monte Carlo method semiflexible polymer translocation scaling law |
url |
http://www.mdpi.com/2073-4360/8/9/332 |
work_keys_str_mv |
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