Ali, Mubarak and Ahmed, Ishtiaq and Nasir, Saima and Ramirez, Patricio and Niemeyer, Christof M. and Mafe, Salvador and Ensinger, Wolfgang (2015):
Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores.
In: ACS Applied Materials & Interfaces, 7 (35), pp. 19541-19545, ISSN 1944-8244,
[Online-Edition: http://dx.doi.org/10.1021/acsami.5b06015],
[Article]
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 and Ahmed, Ishtiaq and Nasir, Saima and Ramirez, Patricio and Niemeyer, Christof M. and Mafe, Salvador and Ensinger, Wolfgang |
| Title: | Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores |
| Language: | English |
| 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. |
| Journal or Publication Title: | ACS Applied Materials & Interfaces |
| Volume: | 7 |
| Number: | 35 |
| 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 |
| Official URL: | http://dx.doi.org/10.1021/acsami.5b06015 |
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