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Ionic circuitry with nanofluidic diodes

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Ionic circuits composed of nanopores functionalized with polyelectrolyte chains can operate in aqueous solutions, thus allowing the control of electrical signals and information processing in physiological environments. We demonstrate experimentally and theoretically that different orientations of single-pore membranes with the same and opposite surface charges can operate reliably in series, parallel, and mixed series–parallel arrangements of two, three, and four nanofluidic diodes using schemes similar to those of solid-state electronics. We consider also different experimental procedures to externally tune the fixed charges of the molecular chains functionalized on the pore surface, showing that single-pore membranes can be used efficiently in ionic circuitry with distinct ionic environments.

Graphical abstract: Ionic circuitry with nanofluidic diodes

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The article was received on 14 Aug 2019, accepted on 25 Oct 2019 and first published on 25 Oct 2019

Article type: Paper
DOI: 10.1039/C9SM01654F
Soft Matter, 2019, Advance Article

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    Ionic circuitry with nanofluidic diodes

    M. Ali, P. Ramirez, S. Nasir, J. Cervera, S. Mafe and W. Ensinger, Soft Matter, 2019, Advance Article , DOI: 10.1039/C9SM01654F

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