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Flow invariant droplet formation for stable parallel microreactors

Author

Listed:
  • Carson T. Riche

    (University of Southern California)

  • Emily J. Roberts

    (University of Southern California)

  • Malancha Gupta

    (University of Southern California
    University of Southern California)

  • Richard L. Brutchey

    (University of Southern California)

  • Noah Malmstadt

    (University of Southern California
    University of Southern California)

Abstract

The translation of batch chemistries onto continuous flow platforms requires addressing the issues of consistent fluidic behaviour, channel fouling and high-throughput processing. Droplet microfluidic technologies reduce channel fouling and provide an improved level of control over heat and mass transfer to control reaction kinetics. However, in conventional geometries, the droplet size is sensitive to changes in flow rates. Here we report a three-dimensional droplet generating device that exhibits flow invariant behaviour and is robust to fluctuations in flow rate. In addition, the droplet generator is capable of producing droplet volumes spanning four orders of magnitude. We apply this device in a parallel network to synthesize platinum nanoparticles using an ionic liquid solvent, demonstrate reproducible synthesis after recycling the ionic liquid, and double the reaction yield compared with an analogous batch synthesis.

Suggested Citation

  • Carson T. Riche & Emily J. Roberts & Malancha Gupta & Richard L. Brutchey & Noah Malmstadt, 2016. "Flow invariant droplet formation for stable parallel microreactors," Nature Communications, Nature, vol. 7(1), pages 1-7, April.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10780
    DOI: 10.1038/ncomms10780
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    Cited by:

    1. Yang Xu & Fangjie Qi & Huachao Mao & Songwei Li & Yizhen Zhu & Jingwen Gong & Lu Wang & Noah Malmstadt & Yong Chen, 2022. "In-situ transfer vat photopolymerization for transparent microfluidic device fabrication," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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