Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28592
Title: Rapid microparticle patterning by enhanced dielectrophoresis effect on a double-layer electrode substrate
Authors: Cheng, W
Li, SZ
Zeng, Q
Yu, XL
Wang, Y 
Chan, HLW 
Liu, W
Guo, SS
Zhao, XZ
Keywords: Dielectrophoresis
Microfluidics
Particle manipulation
Patterning
Issue Date: 2011
Source: Electrophoresis, 2011, v. 32, no. 23, p. 3371-3377 How to cite?
Journal: Electrophoresis 
Abstract: We present a feasible dielectrophoresis (DEP) approach for rapid patterning of microparticles on a reusable double-layer electrode substrate in microfluidics. Simulation analysis demonstrated that the DEP force was dramatically enhanced by the induced electric field on top interdigitated electrodes. By adjusting electric field intensity through the bottom electrodes on thin glass substrate (100μm), polystyrene particles (10μm) were effectively patterned by top electrodes within several seconds (<5s). The particle average velocity can reach a maximum value of about 20.0±3.0μm/s at 1MHz with the strongest DEP force of 1.68pN. This approach implements integration of functional electrodes into one substrate and avoids direct electrical connection to biological objects, providing a potential lab-on-chip system for biological applications.
URI: http://hdl.handle.net/10397/28592
ISSN: 0173-0835
DOI: 10.1002/elps.201100232
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