Radio frequency feedback method for parallelized droplet microfluidics
AuthorsConchouso Gonzalez, David
Carreno, Armando Arpys Arevalo
Foulds, Ian G.
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Physical Sciences and Engineering (PSE) Division
Mechanical Engineering Program
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AbstractThis 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.
CitationConchouso D, Arevalo A, McKerricher G, Castro D, Foulds IG (2016) Radio frequency feedback method for parallelized droplet microfluidics. 2016 IEEE 11th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). Available: http://dx.doi.org/10.1109/NEMS.2016.7758267.
Journal2016 IEEE 11th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)