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Issue 3, 2010
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Theory and experiments of concentration polarization and ion focusing at microchannel and nanochannel interfaces

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Abstract

In this tutorial review aimed at researchers using nanofluidic devices, we summarize the current state of theoretical and experimental approaches to describing concentration polarization (CP) in hybrid microfluidic–nanofluidic systems. We also analyze experimental results for these systems and place them in the context of recent theoretical developments. We then extend the theory to explain the behavior of both positively and negatively charged, low-concentration, analyte species in systems with CP. We conclude by discussing several applications of CP in microfluidics.

Graphical abstract: Theory and experiments of concentration polarization and ion focusing at microchannel and nanochannel interfaces

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Publication details

The article was received on 05 Aug 2009 and first published on 29 Jan 2010


Article type: Tutorial Review
DOI: 10.1039/B902074H
Citation: Chem. Soc. Rev., 2010,39, 1014-1035
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    Theory and experiments of concentration polarization and ion focusing at microchannel and nanochannel interfaces

    T. A. Zangle, A. Mani and J. G. Santiago, Chem. Soc. Rev., 2010, 39, 1014
    DOI: 10.1039/B902074H

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