Title :
A continuous multi-size particle separator using negative dielectrophoretic virtual pillars induced by a planar spot electrode array
Author :
Chang, Sunghwan ; Cho, Young-Ho
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
We present a continuous size-dependent particle separator based on the virtual pillars induced by negative dielectrophoretic (DEP) force on a planar spot electrode array for separation of multi-sized particles. The present particle separator eliminates particle clogging in microchannel using virtual barriers. Also, the present particle separator easily changes separable particle sizes by adjusting applied voltage. Experimental study verifies the size-dependent particle separation capability for 6, 8, 10, and 12 mum-diameter polystyrene beads and the voltage-tuning separation by adjusting applied voltages.
Keywords :
electrodes; electrophoresis; particle separators; continuous multisize particle separator; microchannel; negative dielectrophoretic force; particle clogging; planar spot electrode array; polystyrene beads; virtual barriers; virtual pillars; voltage-tuning separation; Biomedical electrodes; Biomedical equipment; Dielectrophoresis; Medical services; Microchannel; Micromechanical devices; Particle separators; Permittivity; Sorting; Voltage;
Conference_Titel :
Micro Electro Mechanical Systems, 2007. MEMS. IEEE 20th International Conference on
Conference_Location :
Hyogo
Print_ISBN :
978-1-4244-095-5
Electronic_ISBN :
1084-6999
DOI :
10.1109/MEMSYS.2007.4433048
