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Issue 3, 2010
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Nanofluidic diodes

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Abstract

Ionic rectifying effect is a unique ion transport phenomenon observed in certain types of nanofluidic devices and cannot be implemented in microfluidics. Analogous to a diode in solid-state electronics, these diode-like nanofluidic devices can be used to turn the ionic flow on and off depending on the polarity of the applied electric-field. In this tutorial review, we summarize recent advances in the experimental and theoretical studies of ion current rectification in several types of nanofluidic devices. We also present a unified model to elucidate the physical mechanism behind the asymmetric ion transport behavior in nanofluidics.

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Article information


Submitted
06 Jul 2009
First published
13 Oct 2009

Chem. Soc. Rev., 2010,39, 923-938
Article type
Tutorial Review

Nanofluidic diodes

L. Cheng and L. J. Guo, Chem. Soc. Rev., 2010, 39, 923
DOI: 10.1039/B822554K

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