Title :
Integration of organic opto-electrowetting and poly(ethylene) glycol diacrylate (PEGDA) microfluidics for droplet manipulation
Author :
Yu, Tung-Ming ; Yang, Shih-Mo ; Fu, Chien-Yu ; Liu, Ming-Huei ; Hsu, Long ; Liu, Cheng-Hsien
Author_Institution :
Dept. of Electrophys., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
This paper reports a fabrication technology which integrates organic opto-electrowetting (OEW) with PEGDA-based microfluidics between stacked ITO glass chips for droplet generation and manipulation. Organic OEW can be realized by using titanium oxide phthalocyanine (TiOPc) as a photoconductive layer. Optical images can be projected on an organic OEW area to induce the local virtual electrodes which reduce the surface energy. Low-molecular-weight (LMW) PEGDA material is used to form stable and biocompatible microchannels between the stacked ITO glass chips by UV photopolymerization process. PEGDA-based microfluidics provides a simpler way to enhance droplet-in-oil applications in organic OEW. This technology requires only spin-coating and photolithography and is more cost-effective than previous methods.
Keywords :
drops; glass; lab-on-a-chip; microchannel flow; microfabrication; optical images; optical polymers; photoconductivity; spin coating; wetting; ITO glass chips; OEW; PEGDA material; UV photopolymerization process; droplet manipulation; droplet-in-oil applications; fabrication technology; microchannels; microfluidics; optical images; organic optoelectrowetting; photoconductive layer; photolithography; poly(ethylene) glycol diacrylate; spin coating; Biomedical optical imaging; Dielectric liquids; Industries; Optical amplifiers; Optical imaging; Optical pumping; Stimulated emission; Opto-electrowetting (OEW); PEGDA; TiOPc; droplet based system; electrowetting on dielectric (EWOD); photo-conductor;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-0157-3
DOI :
10.1109/TRANSDUCERS.2011.5969540