DocumentCode :
2919531
Title :
Dielectric droplet manipulations by electropolarization forces
Author :
Hsieh, T.-H. ; Fan, S.-K.
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
fYear :
2008
fDate :
13-17 Jan. 2008
Firstpage :
641
Lastpage :
644
Abstract :
Dielectric droplets are successfully manipulated by electropolarization forces in a parallel plate device, which extends the liquid handling capability of digital microfluidics from merely conductive droplets to dielectric ones. Actuations of silicone oil, decane, and hexadecane droplets in a 150-mum-high gap between parallel plates are demonstrated. Silicone oil droplets of different viscosities, 20 and 50 cSt, are transported and split in various gaps heights, demonstrating the manipulation capabilities of electropolarization forces. The threshold and splitting voltages are measured and compared. Moreover, the relationship between the velocity and driving voltage is studied.
Keywords :
dielectric polarisation; drops; electrohydrodynamics; microfluidics; viscosity; dielectric droplet manipulation; digital microfluidics liquid handling capability; electropolarization forces; viscosities; Capacitors; Dielectric devices; Dielectric liquids; Electrodes; Indium tin oxide; Microfluidics; Optical pumping; Petroleum; Slabs; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on
Conference_Location :
Tucson, AZ
ISSN :
1084-6999
Print_ISBN :
978-1-4244-1792-6
Electronic_ISBN :
1084-6999
Type :
conf
DOI :
10.1109/MEMSYS.2008.4443738
Filename :
4443738
Link To Document :
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