6533b837fe1ef96bd12a27a9
RESEARCH PRODUCT
Ionic Transport through Chemically Functionalized Hydrogen Peroxide-Sensitive Asymmetric Nanopores
Patricio RamirezChristof M. NiemeyerSalvador MafeIshtiaq AhmedSaima NasirMubarak AliWolfgang Ensingersubject
Medical diagnosticFabricationMaterials scienceSurface PropertiesIonic bondingNanotechnologyIonNernst-Planck equationsNanoporeschemistry.chemical_compoundGeneral Materials ScienceAminesHydrogen peroxideIon transporterIonsIon TransportCurrent rectificationPolyethylene TerephthalatesH2O2-sensitive porefood and beveragesHydrogen PeroxideModels TheoreticalNanoporeMembranechemistryFISICA APLICADAAsymmetric nanoporesChemical functionalizationdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-28 | ACS Applied Materials & Interfaces |