Microfluidic device for controlled dilution and sorting of droplets by electrokinetic driving forces

P. Carreras; S. Mohr; P. R. Fielden; N. J. Goddard

doi:10.1117/12.769187

2 January 2008 Microfluidic device for controlled dilution and sorting of droplets by electrokinetic driving forces

P. Carreras, S. Mohr, P. R. Fielden, N. J. Goddard

Proceedings Volume 6799, BioMEMS and Nanotechnology III; 67990Z (2008) https://doi.org/10.1117/12.769187
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

Abstract

A droplet-based microfluidic device has been developed for the controlled dilution and sorting of droplets by means of electrokinetic forces. Neutral and cationic dyes have been tested in order to demonstrate the dilution efficiency. In addition, yeast cells and latex beads were successfully enclosed in droplets in a controlled manner. Experiments results demonstrate that even under rapid concentration changes, the rate of production and size of the droplets remained constant. Following the generation of the diluted droplets, the remaining net surface charge allows them to be sorted according to their dilution.

Citation Download Citation

P. Carreras, S. Mohr, P. R. Fielden, and N. J. Goddard "Microfluidic device for controlled dilution and sorting of droplets by electrokinetic driving forces", Proc. SPIE 6799, BioMEMS and Nanotechnology III, 67990Z (2 January 2008); https://doi.org/10.1117/12.769187

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