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Nano Lett. 2007 Mar;7(3):547-51. Epub 2007 Feb 21.

Rectification of ionic current in a nanofluidic diode.

Author information

1
Department of Mechanical Engineering, University of California, Berkeley, California 94720, USA.

Abstract

We demonstrate rectification of ionic transport in a nanofluidic diode fabricated by introducing a surface charge discontinuity in a nanofluidic channel. Device current-voltage (I-V) characteristics agree qualitatively with a one-dimensional model at moderate to high ionic concentrations. This study illustrates ionic flow control using surface charge patterning in nanofluidic channels under high bias voltages.

PMID:
17311461
DOI:
10.1021/nl062806o

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