Radio frequency feedback method for parallelized droplet microfluidics

David Conchouso Gonzalez, Armando Arpys Arevalo Carreno, Garret McKerricher, David Castro, Ian G. Foulds

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


This paper reports on a radio frequency micro-strip T-resonator that is integrated to a parallel droplet microfluidic system. The T-resonator works as a feedback system to monitor uniform droplet production and to detect, in real-time, any malfunctions due to channel fouling or clogging. Emulsions at different W/O flow-rate ratios are generated in a microfluidic device containing 8 parallelized generators. These emulsions are then guided towards the RF sensor, which is then read using a Network Analyzer to obtain the frequency response of the system. The proposed T-resonator shows frequency shifts of 45MHz for only 5% change in the emulsion's water in oil content. These shifts can then be used as a feedback system to trigger alarms and notify production and quality control engineers about problems in the droplet generation process.
Original languageEnglish (US)
Title of host publication2016 IEEE 11th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Print)9781509019472
StatePublished - Dec 19 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01


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