Issue 3, 2010
From the journal:

Chemical Society Reviews

Theory and experiments of concentration polarization and ion focusing at microchannel and nanochannel interfaces†

Thomas A. Zangle,a   Ali Mania  and  Juan G. Santiago*a  

* Corresponding authors

a Stanford University Mechanical Engineering Department, Building 530, Room 225, 440 Escondido Mall, Stanford, California 94305-3030, USA
E-mail: juan.santiago@stanford.edu

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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Article information

DOI
https://doi.org/10.1039/B902074H
Article type
Tutorial Review
Submitted
05 Aug 2009
First published
29 Jan 2010

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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