Multipore membranes with nanofluidic diodes allowing multifunctional rectification and logical responses

We have arranged two multipore membranes with conical nanopores in a three-compartment electrochemical cell. The membranes act as tunable nanofluidic diodes whose functionality is entirely based on the pH-reversed ion current rectification and does not require specific surface functionalizations. Th...

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Bibliographic Details
Published in:Applied physics letters 2016-06, Vol.108 (25)
Main Authors: Cervera, Javier, Ramirez, Patricio, Gomez, Vicente, Nasir, Saima, Ali, Mubarak, Ensinger, Wolfgang, Stroeve, Pieter, Mafe, Salvador
Format: Article
Language:English
Subjects:
Applied physics
Diodes
Electrochemical cells
Fluidics
Ion currents
Membranes
Nanofluids
Porosity
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Summary:We have arranged two multipore membranes with conical nanopores in a three-compartment electrochemical cell. The membranes act as tunable nanofluidic diodes whose functionality is entirely based on the pH-reversed ion current rectification and does not require specific surface functionalizations. This electrochemical arrangement can display different electrical behaviors (quasi-linear ohmic response and inward/outward rectifications) as a function of the electrolyte concentration in the external solutions and the applied voltage at the pore tips. The multifunctional response permits to implement different logical responses including NOR and INHIBIT functions.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4954764