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Issue 15, 2015
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Efficient gas–liquid contact using microfluidic membrane devices with staggered herringbone mixers

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Abstract

We describe a novel membrane based gas–liquid-contacting device with increased mass transport and reduced pressure loss by combining a membrane with a staggered herringbone static mixer. Herringbone structures are imposed on the microfluidic channel geometry via soft lithography, acting as mixers which introduce secondary flows at the membrane interface. Such flows include Dean vortices and Taylor flows generating effective mixing while improving mass transport and preventing concentration polarization in microfluidic channels. Furthermore, our static herringbone mixer membranes effectively reduce pressure losses leading to devices with enhanced transfer properties for microfluidic gas–liquid contact. We investigate the red blood cell distribution to tailor our devices towards miniaturised extracorporeal membrane oxygenation and improved comfort of patients with lung insufficiencies.

Graphical abstract: Efficient gas–liquid contact using microfluidic membrane devices with staggered herringbone mixers

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Publication details

The article was received on 13 Apr 2015, accepted on 04 Jun 2015 and first published on 04 Jun 2015


Article type: Paper
DOI: 10.1039/C5LC00428D
Citation: Lab Chip, 2015,15, 3132-3137
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    Efficient gas–liquid contact using microfluidic membrane devices with staggered herringbone mixers

    T. Femmer, M. L. Eggersdorfer, A. J. C. Kuehne and M. Wessling, Lab Chip, 2015, 15, 3132
    DOI: 10.1039/C5LC00428D

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