Uniform droplet splitting and detection using Lab-on-Chip flow cytometry on a microfluidic PDMS device

Casper Kunstmann-Olsen, Martin Hanczyc, James Hoyland, Steen Rasmussen, Horst-Günter Rubahn

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

A PDMS chip is fabricated using soft lithography and applied to investigate the formation and division of nitrobenzene (NB) droplets in a two-phase system stabilized by oleic acid. Using an integrated on-chip flow cytometer setup, effected with optical fibers, droplet size distributions are analyzed in situ based on optical signal intensities. By controlling the hydrodynamic flow focusing, uniform droplets of sizes between 100 μm and 300 μm are created with precise size control. Cross-flow shearing allows one to divide these droplets into anything from 2 to 9 individual droplets, depending on flow parameters.
OriginalsprogEngelsk
TidsskriftSensors and Actuators B: Chemical
Vol/bind229
Sider (fra-til)7-13
ISSN0925-4005
DOI
StatusUdgivet - 29. jan. 2016

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