khoshmanesh-sizebased-2010.pdf (1.75 MB)
Size based separation of microparticles using a dielectrophoretic activated system
journal contribution
posted on 2010-08-01, 00:00 authored by Khashayar Khoshmanesh, C Zhang, Saeid Nahavandi, F Tovar-Lopez, Sara Baratchi, A Mitchell, K Kalantar-zadehThis work describes the separation of polystyrene microparticles suspended in deionized (DI) water according to their dimensions using a dielectrophoretic (DEP) system. The DEP system utilizes curved microelectrodes integrated into a microfluidic system. Microparticles of 1, 6, and 15 μm are applied to the system and their response to the DEP field is studied at different frequencies of 100, 200, and 20 MHz. The microelectrodes act as a DEP barrier for 15 μm particles and retain them at all frequencies whereas the response of 1 and 6 μm particles depend strongly on the applied frequency. At 100 kHz, both particles are trapped by the microelectrodes. However, at 200 kHz, the 1 μm particles are trapped by the microelectrodes while the 6 μm particles are pushed toward the sidewalls. Finally, at 20 MHz, both particles are pushed toward the sidewalls. The experiments show the tunable performance of the system to sort the microparticles of various dimensions in microfluidic systems.
History
Journal
Journal of applied physicsVolume
108Issue
3Pagination
1 - 7Publisher
American Institute of PhysicsLocation
College Park, Md.Publisher DOI
ISSN
0021-8979eISSN
1089-7550Language
engNotes
Online Publication Date: 5 August 2010.The following article appeared in (citation of published article) and may be found at http://dx.doi.org/10.1063/1.3457226Publication classification
C1 Refereed article in a scholarly journalCopyright notice
Copyright 2010, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.Usage metrics
Categories
No categories selectedKeywords
Science & TechnologyPhysical SciencesPhysics, AppliedPhysicsbarium compoundsenergy harvestingferroelectric semiconductorsII-VI semiconductorslead compoundsnanowirespiezoelectric semiconductorssemiconductor quantum wiresvibrationswide band gap semiconductorszinc compoundsCONTINUOUS PARTICLE SEPARATIONAC ELECTRIC-FIELDSCELLSMANIPULATIONAGGREGATIONCHANNELSARRAYDNA
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC