Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 8, Pages 1661-1666Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.06.033
Keywords
Nanoparticles; Microelectrodes; Dielectrophoresis; High conductance; Electrochemistry
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Funding
- UCSD
- NIH NanoTUMOR Center [U54-CA119335]
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The separation of nanoparticles from micron size particles in high conductance buffers was achieved using an AC dielectrophoretic (DEP) microarray device with hydrogel over-coated microelectrodes While nanoparticles Could be selectively concentrated into high field regions directly over the platinum microelectrodes. micro-bubbling and electrode darkening was also observed. For similar experiments using uncoated microelectrodes, SEM analysis showed severe erosion of the platinum microelectrodes and fusion of nanoparticles due to the aggressive electrochemistry. (C) 2009 Elsevier B.V. All rights reserved
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