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Issue 8, 2015
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Non-equilibrium electrokinetic micromixer with 3D nanochannel networks

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Abstract

We report an active micromixer which utilizes vortex generation due to non-equilibrium electrokinetics near the interface between a microchannnel and a nanochannel networks membrane (NCNM), constructed from geometrically controlled in situ self-assembled nanoparticles. A large interfacing area where it is possible to generate vortices can be realized, because nano-interstices between the assembled nanoparticles are intrinsically collective three-dimensional nanochannel networks, which may be compared to typical silicon-based 2D nanochannels. The proposed mixer shows a 2-fold shorter mixing time (~0.78 ms) and a 34-fold shorter mixing length (~7.86 μm) compared to conventional 2D nanochannels.

Graphical abstract: Non-equilibrium electrokinetic micromixer with 3D nanochannel networks

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Supplementary files

Publication details

The article was received on 08 Dec 2014, accepted on 11 Feb 2015 and first published on 11 Feb 2015


Article type: Technical Innovation
DOI: 10.1039/C4LC01435A
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Lab Chip, 2015,15, 1794-1798

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    Non-equilibrium electrokinetic micromixer with 3D nanochannel networks

    E. Choi, K. Kwon, S. J. Lee, D. Kim and J. Park, Lab Chip, 2015, 15, 1794
    DOI: 10.1039/C4LC01435A

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