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Ionic Transport Through Single Solid-State Nanopores Controlled with Thermally Nanoactuated Macromolecular Gates

Yameen, Basit and Ali, Mubarak and Neumann, Reinhard and Ensinger, Wolfgang and Knoll, Wolfgang and Azzaroni, Omar (2009):
Ionic Transport Through Single Solid-State Nanopores Controlled with Thermally Nanoactuated Macromolecular Gates.
In: Small, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, pp. 1287-1291, 5, (11), [Online-Edition: http://dx.doi.org/10.1002/smll.200801318],
[Article]

Abstract

Single solid-state nanopores modified with poly-N-isopropylacrylamide (NIPAM) brushes display thermally controlled gating properties. Below the lower critical solubility temperature (LCST) NIPAM brushes are swollen and, consequently, dramatically reduce the effective cross section of the nanopores (see image). Conversely, above the LCST the brushes dehydrate and suffer a transition into a collapsed state, which promotes the widening of the nanopore and enables a substantial flow of ions.

Item Type: Article
Erschienen: 2009
Creators: Yameen, Basit and Ali, Mubarak and Neumann, Reinhard and Ensinger, Wolfgang and Knoll, Wolfgang and Azzaroni, Omar
Title: Ionic Transport Through Single Solid-State Nanopores Controlled with Thermally Nanoactuated Macromolecular Gates
Language: English
Abstract:

Single solid-state nanopores modified with poly-N-isopropylacrylamide (NIPAM) brushes display thermally controlled gating properties. Below the lower critical solubility temperature (LCST) NIPAM brushes are swollen and, consequently, dramatically reduce the effective cross section of the nanopores (see image). Conversely, above the LCST the brushes dehydrate and suffer a transition into a collapsed state, which promotes the widening of the nanopore and enables a substantial flow of ions.

Journal or Publication Title: Small
Volume: 5
Number: 11
Publisher: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Uncontrolled Keywords: ion channels; membranes; molecular devices; nanotechnology; polymers
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 15 Jul 2009 12:49
Official URL: http://dx.doi.org/10.1002/smll.200801318
Funders: Funded by Higher Education Commission (HEC) of Pakistan, Funded by Max Planck Society (Germany), Funded by Alexander von Humboldt Stiftung (Germany), Funded by Centro Interdisciplinario de Nanociencia y Nanotecnología (CINN) (ANPCyT—Argentina)
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