Share Email Print
cover

Proceedings Paper

Studies on dielectrophoretic separation using biochips with different electrode shapes
Author(s): Yonghong Liu; Zhan Zhao; Jing Xu; Cheng Pang; Zhen Fang; Lidong Du
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Dielectrophoresis (DEP) is a promising method for the automated separation of biological cells in a miniaturized format. This technology allows cells to be manipulated electronically while suspended in a microfluidic channel embedded in a silicon lab-on-chip. Different dielectrophoretic configurations have been designed and fabricated using micro-electro-mechanical- systems (MEMS) technology, which are investigated comparatively on their function principles and separation efficiencies. DEP responses of colloidal polystyrene particles with the diameters of 10.9µm and 21.3µm suspended in deionized water are measured. It is found that, at the low medium conductivities used, global or local extreme points of electric fields can be configurated dependent on shapes and geometry sizes of electrodes. In addition, all the new phenomena appeared during whole experiment are observed, which may provide novel methods to separate micro particles.

Paper Details

Date Published: 3 February 2009
PDF: 4 pages
Proc. SPIE 7159, 2008 International Conference on Optical Instruments and Technology: MEMS/NEMS Technology and Applications, 71590E (3 February 2009); doi: 10.1117/12.807033
Show Author Affiliations
Yonghong Liu, Institute of Electronics (China)
Graduate School of Chinese Academy of Sciences (China)
Zhan Zhao, Institute of Electronics (China)
Jing Xu, Institute of Electronics (China)
Graduate School of Chinese Academy of Sciences (China)
Cheng Pang, Institute of Electronics (China)
Graduate School of Chinese Academy of Sciences (China)
Zhen Fang, Institute of Electronics (China)
Lidong Du, Institute of Electronics (China)
Graduate School of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 7159:
2008 International Conference on Optical Instruments and Technology: MEMS/NEMS Technology and Applications

© SPIE. Terms of Use
Back to Top