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Flow-induced polymer separation through a nanopore: effects of solvent quality

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Abstract

Using a hybrid simulation method that combines a lattice-Boltzmann approach for the flow and a molecular dynamics model for the polymer, we investigated the effect of solvent quality on the flow-induced polymer translocation through a nanopore. We demonstrate the nontrivial dependence of the translocation dynamics of polymers on the solvent quality, i.e., the enhancement in the polymer insolubility increases the critical velocity flux and shortens the translocation time. Accordingly, we propose a new strategy to separate polymers with different solubilities via their translocations in the nanopore by adjusting the velocity flux of the flow, which appears to be promising for the design of micro-scaled polymer separation devices.

Graphical abstract: Flow-induced polymer separation through a nanopore: effects of solvent quality

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Publication details

The article was received on 21 Apr 2017, accepted on 10 Sep 2017 and first published on 12 Sep 2017


Article type: Communication
DOI: 10.1039/C7SM00784A
Citation: Soft Matter, 2017, Advance Article
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    Flow-induced polymer separation through a nanopore: effects of solvent quality

    M. Ding, X. Duan and T. Shi, Soft Matter, 2017, Advance Article , DOI: 10.1039/C7SM00784A

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