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ATP-modulated ionic transport through synthetic nanochannels

Ali, Mubarak and Nguyen, Quoc Hung and Neumann, Reinhard and Ensinger, Wolfgang :
ATP-modulated ionic transport through synthetic nanochannels.
[Online-Edition: http://pubs.rsc.org/en/Content/ArticleLanding/2010/CC/c0cc01...]
In: Chemical Communications, 46 (36) pp. 6690-6692.
[Article] , (2010)

Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/2010/CC/c0cc01...

Abstract

Here, we demonstrate an anion controlled molecular gate based on synthetic ion channels modified with polyethyleneimine. For single conical nanochannels, addition of ATP leads to significant decrease in the rectified ion flux, representing the closure of the ionic gate. Complementary experiments performed with nanoporous membranes show that the flux of charged dye (NDS2−) through a cylindrical nanochannel array diminishes by the co-addition of ATP in the analyte solution.

Item Type: Article
Erschienen: 2010
Creators: Ali, Mubarak and Nguyen, Quoc Hung and Neumann, Reinhard and Ensinger, Wolfgang
Title: ATP-modulated ionic transport through synthetic nanochannels
Language: English
Abstract:

Here, we demonstrate an anion controlled molecular gate based on synthetic ion channels modified with polyethyleneimine. For single conical nanochannels, addition of ATP leads to significant decrease in the rectified ion flux, representing the closure of the ionic gate. Complementary experiments performed with nanoporous membranes show that the flux of charged dye (NDS2−) through a cylindrical nanochannel array diminishes by the co-addition of ATP in the analyte solution.

Journal or Publication Title: Chemical Communications
Volume: 46
Number: 36
Publisher: Royal Society of Chemistry Publishing
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: 14 Sep 2010 06:17
Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/2010/CC/c0cc01...
Funders: The authors gratefully acknowledge financial support by the Beilstein-Institut, Frankfurt/Main, Germany, within the research collaboration NanoBiC., Q. H. Nguyen thanks the Gottlieb Daimler-und Karl Benz-Stiftung for financial support.
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