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

fYear

2007

fDate

21-25 Jan. 2007

Firstpage

19

Lastpage

22

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro Electro Mechanical Systems, 2007. MEMS. IEEE 20th International Conference on

Conference_Location

Hyogo

ISSN

1084-6999

Print_ISBN

978-1-4244-095-5

Electronic_ISBN

1084-6999

Type

conf

DOI

10.1109/MEMSYS.2007.4433048

Filename

4433048