aalto1 untyped-item.component.html
Driven polymer translocation through a nanopore from a confining channel
Loading...
Access rights
embargoedAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
13
Series
Journal of Chemical Physics, Volume 162, issue 24, pp. 1-13
Abstract
We consider the dynamics of pore-driven polymer translocation through a nanopore to a two-dimensional semi-infinite space when the chain is initially confined and equilibrated in a narrow channel. To this end, we use Langevin dynamics (LD) simulations and iso-flux tension propagation (IFTP) theory to characterize local and global dynamics of the translocating chain. The dynamics of the process can be described by the IFTP theory in very good agreement with the LD simulations for all values of confinement in the channel. The theory reveals that for channels with a size comparable to or less than the end-to-end distance of the unconfined chain, in which the blob theory works, the scaling form of the translocation time depends on both the chain contour length and the channel width. Conversely, for a very narrow channel, the translocation time only depends on the chain contour length and is similar to that of a rod due to the absence of spatial chain fluctuations.
Description
Publisher Copyright: © 2025 Author(s).
Keywords
Other note
Citation
Emamyari, S, Sarabadani, J, Metzler, R & Ala-Nissila, T 2025, 'Driven polymer translocation through a nanopore from a confining channel', Journal of Chemical Physics, vol. 162, no. 24, 244903, pp. 1-13. https://doi.org/10.1063/5.0269884