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Marbach S, Bocquet L. Active sieving across driven nanopores for tunable selectivity. J Chem Phys. 2017;147(15):154701doi: 10.1063/1.4997993.
Marbach, S., & Bocquet, L. (2017). Active sieving across driven nanopores for tunable selectivity. The Journal of chemical physics, 147(15), 154701. https://doi.org/10.1063/1.4997993
Marbach, Sophie, and Bocquet, Lydéric. "Active sieving across driven nanopores for tunable selectivity." The Journal of chemical physics vol. 147,15 (2017): 154701. doi: https://doi.org/10.1063/1.4997993
Marbach S, Bocquet L. Active sieving across driven nanopores for tunable selectivity. J Chem Phys. 2017 Oct 21;147(15):154701. doi: 10.1063/1.4997993. PMID: 29055345.
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J Chem Phys. 2017 Oct 21;147(15):154701. doi: 10.1063/1.4997993.

Active sieving across driven nanopores for tunable selectivity.

The Journal of chemical physics

Sophie Marbach, Lydéric Bocquet

Affiliations

  1. Laboratoire de Physique Statistique, UMR CNRS 8550, Ecole Normale Supérieure, PSL Research University, 24 Rue Lhomond, 75005 Paris, France.

PMID: 29055345 DOI: 10.1063/1.4997993

Abstract

Molecular separation traditionally relies on sieving processes across passive nanoporous membranes. Here we explore theoretically the concept of non-equilibrium active sieving. We investigate a simple model for an active noisy nanopore, where gating-in terms of size or charge-is externally driven at a tunable frequency. Our analytical and numerical results unveil a rich sieving diagram in terms of the forced gating frequency. Unexpectedly, the separation ability is strongly increased as compared to its passive (zero frequency) counterpart. It also points to the possibility of tuning dynamically the osmotic pressure. Active separation outperforms passive sieving and represents a promising avenue for advanced filtration.

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