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Rectification of ionic current in a nanofluidic diode.

Author(s): Hirofumi Daiguji, Rohit Karnik, A. Majumdar, Kenneth Castelino, C Duan

Publication date: 2007-02-28

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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.

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PubMed ID:: 17311461

DOI:: 10.1021/nl062806o

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