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Issue 55, 2015
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A continuous-flow droplet-based concentrator using ion concentration polarization

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Abstract

We propose a method to continuously generate droplets with programmable concentration using the ion concentration polarization (ICP) phenomenon. The concentration of a sample in continuously formed droplets can be tuned with a combination of flow rate and applied voltage. The nanoporous junction needed for ICP was fabricated by embedding a Nafion membrane inside a PDMS mixture and then self-sealed by curing it. Compared to other methods previously reported in the literature, our fabrication method has the advantages of simplicity, reliability, repeatability and low-cost. Sample droplets with up to 100-fold concentration were generated continuously with our device.

Graphical abstract: A continuous-flow droplet-based concentrator using ion concentration polarization

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Publication details

The article was received on 24 Apr 2015, accepted on 12 May 2015 and first published on 12 May 2015


Article type: Paper
DOI: 10.1039/C5RA07491F
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Citation: RSC Adv., 2015,5, 44336-44341

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    A continuous-flow droplet-based concentrator using ion concentration polarization

    D. Phan, Y. Chun and N. Nguyen, RSC Adv., 2015, 5, 44336
    DOI: 10.1039/C5RA07491F

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