DocumentCode :
731704
Title :
Photo-switchable microvalve in a reusable Lab-on-a-disc
Author :
Glennon, T. ; Saez, J. ; Czugala, M. ; Florea, L. ; Mcnamara, E. ; Fraser, K.J. ; Ducree, J. ; Diamond, D. ; Benito-Lopez, F.
Author_Institution :
Insight Centre for Data Analytics, Dublin City Univ., Dublin, Ireland
fYear :
2015
fDate :
21-25 June 2015
Firstpage :
109
Lastpage :
112
Abstract :
This contribution describes for the first time the fabrication and the performance of a reversible ionogel microvalve in-situ photopolymerised into a reusable disc platform for fluid control. During storage and spinning, the swollen microvalve provides a permanent liquid barrier due to the special chemical characteristics of the ionogel. The microvalve is easy actuated using a white light LED allowing open of the channel at a desired time. The actuation mechanism is chemically reversible when an acid solution is provided to the microvalve. Here a perpendicular microchannel, connected to the valve from behind, is used to ensure the re-swelling of the ionogel and therefore reusability of the Lab-on-a-disc.
Keywords :
lab-on-a-chip; light emitting diodes; microchannel flow; microfabrication; microvalves; acid solution; actuation mechanism; fluid control; lab-on-a-disc; permanent liquid barrier; perpendicular microchannel; reusable disc platform; reversible ionogel microvalve; swollen microvalve; white light LED; Fabrication; Light emitting diodes; Liquids; Microfluidics; Microvalves; Polymers; ionic liquid; ionogel; lab-on-a-disc; photoactuation; spiropyran; valve;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on
Conference_Location :
Anchorage, AK
Type :
conf
DOI :
10.1109/TRANSDUCERS.2015.7180873
Filename :
7180873
Link To Document :
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