Theory of polymer translocation through a flickering nanopore under an alternating driving force

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Sarabadani, Jalal Ikonen, T. Ala-Nissila, Tapio 2016-09-23T08:23:14Z 2015
dc.identifier.citation Sarabadani , J , Ikonen , T & Ala-Nissila , T 2015 , ' Theory of polymer translocation through a flickering nanopore under an alternating driving force ' , Journal of Chemical Physics , vol. 143 , no. 1 , 074905 , pp. 1-10 . en
dc.identifier.issn 0021-9606
dc.identifier.issn 1089-7690
dc.identifier.other PURE UUID: b3996fd1-8e35-4253-9a55-fba017b73ec9
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract We develop a theory for polymer translocation driven by a time-dependent force through an oscillating nanopore. To this end, we extend the iso-flux tension propagation theory [Sarabadani et al., J. Chem. Phys. 141, 214907 (2014)] for such a setup. We assume that the external driving force in the pore has a component oscillating in time, and the flickering pore is similarly described by an oscillating term in the pore friction. In addition to numerically solving the model, we derive analytical approximations that are in good agreement with the numerical simulations. Our results show that by controlling either the force or pore oscillations, the translocation process can be either sped up or slowed down depending on the frequency of the oscillations and the characteristic time scale of the process. We also show that while in the low and high frequency limits, the translocation time τ follows the established scaling relation with respect to chain length N 0, in the intermediate frequency regime small periodic, fluctuations can have drastic effects on the dynamical scaling. The results can be easily generalized for non-periodic oscillations and elucidate the role of time dependent forces and pore oscillations in driven polymer translocation. en
dc.format.extent 1-10
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries JOURNAL OF CHEMICAL PHYSICS en
dc.relation.ispartofseries Volume 143, issue 1 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Theory of polymer translocation through a flickering nanopore under an alternating driving force en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics en
dc.subject.keyword Polymer, Driven translocation, nanopore
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201609234349
dc.identifier.doi 10.1063/1.4928743
dc.type.version publishedVersion info:eu-repo/date/embargoEnd/2016-08-20

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