TY - GEN
T1 - Lab-on-a-display
T2 - 2006 International Conference on Microtechnologies in Medicine and Biology
AU - Choi, Wonjae
AU - Kim, Sewhan
AU - Jang, Jin
AU - Park, Je Kyun
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - We report a new microfluidic system, lab-on-a-display,' that microparticles can be manipulated by dielectrophoretic forces generated from the optoelectronic tweezers (OET) on a liquid crystal display (LCD). In this study, the lab-on-a-display is first realized by a conventional LCD module and an OET device including a ground layer, a liquid layer containing microparticles, and a photoconductive layer. When an AC bias voltage is applied between the photoconductive and the ground layers, the LCD makes an image and transmits it to the OET device. Consequently, the image forms virtual electrodes on the surface of photoconductive layer, which results in the electric field gradient to generate a dielectrophoretic force. The lab-on-a-display is successfully applied to the programmable manipulation of 45 μm polystyrene particles. Our lab-on-a-display platform may be potential for programmable particle manipulation or a bioprocessing unit including a cell separator and a bead-based immunoassay.
AB - We report a new microfluidic system, lab-on-a-display,' that microparticles can be manipulated by dielectrophoretic forces generated from the optoelectronic tweezers (OET) on a liquid crystal display (LCD). In this study, the lab-on-a-display is first realized by a conventional LCD module and an OET device including a ground layer, a liquid layer containing microparticles, and a photoconductive layer. When an AC bias voltage is applied between the photoconductive and the ground layers, the LCD makes an image and transmits it to the OET device. Consequently, the image forms virtual electrodes on the surface of photoconductive layer, which results in the electric field gradient to generate a dielectrophoretic force. The lab-on-a-display is successfully applied to the programmable manipulation of 45 μm polystyrene particles. Our lab-on-a-display platform may be potential for programmable particle manipulation or a bioprocessing unit including a cell separator and a bead-based immunoassay.
KW - Dielectrophoresis
KW - Lab-on-a-display
KW - Liquid crystal display (LCD)
KW - Optoelectronic tweezers
KW - Virtual electrode
UR - http://www.scopus.com/inward/record.url?scp=35548933000&partnerID=8YFLogxK
U2 - 10.1109/MMB.2006.251484
DO - 10.1109/MMB.2006.251484
M3 - Conference contribution
AN - SCOPUS:35548933000
SN - 1424403383
SN - 9781424403387
T3 - Proceedings of 2006 International Conference on Microtechnologies in Medicine and Biology
SP - 39
EP - 42
BT - Proceedings of 2006 International Conference on Microtechnologies in Medicine and Biology
Y2 - 9 May 2006 through 12 May 2006
ER -