Continuous particle manipulation and separation in a hurdle-combined curved microchannel using DC dielectrophoresis
conference contribution
posted on 2024-11-14, 09:05 authored by Ming Li, Shunbo Li, Weihua LiWeihua Li, Weijia Wen, Gursel AliciGursel AliciThis paper presents a novel dielectrophoresis (DEP)-based microfluidic device which combines round hurdle with an S-shaped curved microchannel for continuous manipulation and separation of microparticles. Local nonuniform electric fields are generated by means of both constricted gaps and curved sections having equal width. Under the effect of negative DEP, particles transporting throughout the microchannel electrokinetically will be directed away from either inner wall or hurdle edge. Both experiment and numerical simulation were conducted, the results of which showed that the trajectories of fix-sized (i.e. 10 or 15 μm) polystyrene (PS) particles could be controlled by adjusting applied voltage, and continuous size-based separation of 10 and 15 μm particles was achieved. Compared to other microchannel designs that make use of either obstacle or curvature individually for electric field gradient, the developed microchannel offers advantages such as improved controllability over particle motion, lower requirement of applied voltage, reduced fouling and particle adhesion, etc. © 2013 AIP Publishing LLC.
History
Citation
Li, M., Li, S., Li, W., Wen, W. & Alici, G. (2013). Continuous particle manipulation and separation in a hurdle-combined curved microchannel using DC dielectrophoresis. In A. Yu, K. Dong, R. Yang & S. Luding (Eds.), Proceedings of the 7th International Conference on Micromechanics of Granular Media (pp. 1150-1153). Australia: AIP Publishing.Parent title
AIP Conference ProceedingsVolume
1542Pagination
1150-1153Publisher website/DOI
Language
EnglishRIS ID
80888Usage metrics
Categories
Exports
RefWorksRefWorks
BibTeXBibTeX
Ref. managerRef. manager
EndnoteEndnote
DataCiteDataCite
NLMNLM
DCDC