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Translocation across a self-healing block copolymer membrane

Abstract

Herein, a membrane prepared from the self-assembly of poly(styrene-co-acrylonitrile)-b-poly(ethylene oxide)-b-poly(styrene-co-acrylonitrile) micelles is found to exhibit translocation of nano-objects dispersed in aqueous solution. With the water flow as a driving force, temporary pores are created in-between the micelles to facilitate the passage of nano-objects. These temporary pores close afterwards through a self-healing mechanism. Among the nano-objects, while poly(ethylene glycol) couldn’t pass through the membrane probably because of interactions and chain entanglements with constituting membrane micelles, the bovine serum albumin was found freely translocating irrespective of the pressure. On the other side, polystyrene and silica nanoparticles exhibited a selective translocation directly influenced by their size and applied pressure.

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Publication details

The article was received on 29 Jun 2017, accepted on 08 Sep 2017 and first published on 08 Sep 2017


Article type: Communication
DOI: 10.1039/C7SM01284E
Citation: Soft Matter, 2017, Accepted Manuscript
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    Translocation across a self-healing block copolymer membrane

    S. Nehache, P. Tyagi, M. Semsarilar, A. Deratani, T. N. T. Phan, D. Gigmes and D. Quémener, Soft Matter, 2017, Accepted Manuscript , DOI: 10.1039/C7SM01284E

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