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Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores

Ali, Mubarak ; Ahmed, Ishtiaq ; Nasir, Saima ; Ramirez, Patricio ; Niemeyer, Christof M. ; Mafe, Salvador ; Ensinger, Wolfgang (2015)
Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores.
In: ACS Applied Materials & Interfaces, 7 (35)
Article, Bibliographie

Abstract

We describe the fabrication of a chemical-sensitive nanofluidic device based on asymmetric nanopores whose transport characteristics can be modulated upon exposure to hydrogen peroxide (H2O2). We show experimentally and theoretically that the current-voltage curves provide a suitable method to monitor the H2O2-mediated change in pore surface characteristics from the electronic readouts. We demonstrate also that the single pore characteristics can be scaled to the case of a multipore membrane whose electric outputs can be readily controlled. Because H2O2 is an agent significant for medical diagnostics, the results should be useful for sensing nanofluidic devices.

Item Type: Article
Erschienen: 2015
Creators: Ali, Mubarak ; Ahmed, Ishtiaq ; Nasir, Saima ; Ramirez, Patricio ; Niemeyer, Christof M. ; Mafe, Salvador ; Ensinger, Wolfgang
Type of entry: Bibliographie
Title: Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores
Language: English
Date: September 2015
Journal or Publication Title: ACS Applied Materials & Interfaces
Volume of the journal: 7
Issue Number: 35
URL / URN: http://dx.doi.org/10.1021/acsami.5b06015
Abstract:

We describe the fabrication of a chemical-sensitive nanofluidic device based on asymmetric nanopores whose transport characteristics can be modulated upon exposure to hydrogen peroxide (H2O2). We show experimentally and theoretically that the current-voltage curves provide a suitable method to monitor the H2O2-mediated change in pore surface characteristics from the electronic readouts. We demonstrate also that the single pore characteristics can be scaled to the case of a multipore membrane whose electric outputs can be readily controlled. Because H2O2 is an agent significant for medical diagnostics, the results should be useful for sensing nanofluidic devices.

Divisions: 11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences
Date Deposited: 25 Sep 2015 13:49
Last Modified: 25 Sep 2015 13:49
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