Biopolymer Filtration in Corrugated Nanochannels
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© 2014 American Physical Society (APS). http://www.aps.org/
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2014
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Mcode
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Language
en
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118301/1-5
Series
Physical Review Letters, Volume 112, Issue 11
Abstract
We examine pressure-driven nonequilibrium transport of linear, circular, and star polymers through a nanochannel containing a rectangular pit with full hydrodynamic interactions and thermal fluctuations. We demonstrate that with sufficiently small pressure differences, there is contour length-dependent entropic trapping of the polymer in the pit when the pit and the polymer sizes are compatible. This is due to competition between flow and chain relaxation in the pit, which leads to a nonmonotonic dependence of the polymer mobility on its size and should aid in the design of nanofiltration devices based on the polymer size and shape.Description
Keywords
lattice boltzmann, polymers, filtration, nanochannels, thermal fluctuations
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Citation
Ollila, Santtu T. T. & Denniston, Colin & Karttunen, Mikko & Ala-Nissilä, Tapio. 2014. Biopolymer Filtration in Corrugated Nanochannels. Physical Review Letters. Volume 112, Issue 11. P. 118301/1-5. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.112.118301.