Rectification of Ionic Current in a Nanofluidic Diode
2007; American Chemical Society; Volume: 7; Issue: 3 Linguagem: Inglês
10.1021/nl062806o
ISSN1530-6992
AutoresRohit Karnik, Chuanhua Duan, Kenneth Castelino, Hirofumi Daiguji, Arun Majumdar,
Tópico(s)Microfluidic and Capillary Electrophoresis Applications
ResumoWe 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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