Article citationsMore>>
Yamamoto, M., Yasukawa, T., Suzuki, M., Kosuge, S., Shiku, H., Matsue, T., et al. (2012) Patterning with Particles Using Three-Dimensional Interdigitated Array Electrodes with Negative Dielectrophoresis and Its Application to Simple Immunosensing. Electrochimica Acta, 82, 35-42.
http://dx.doi.org/10.1016/j.electacta.2012.02.109
has been cited by the following article:
-
TITLE:
Helical Dielectrophoretic Particle Separator Fabricated by Conformal Spindle Printing
AUTHORS:
Nicolas Guérin, Martin Lévesque, Daniel Therriault
KEYWORDS:
Conformal Printing, Dielectrophoresis, Particle Separator, Helix
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.7 No.9,
July
4,
2014
ABSTRACT: This paper reports the fabrication and testing of a helical cell separator that uses insulator-based dielectrophoresis as the driving force of its separation. The helical channel shape’s main advantage is its constant curvature radius which generates a constant electric field gradient. The presented separator was fabricated by extruding a sacrificial ink on rotating spindles using a computer-controlled robot. After being assembled, connected to the reservoir and encapsulated in epoxy resin, the ink was removed to create a helical microchannel. The resulting device was tested by circulating polystyrene microbeads of 4 and 10 μm diameter through its channel using a voltage of 900 VDC. The particles were separated with efficiencies of 94.0% and 92.5%, respectively. However, roughness in some parts of the channel and connections that had larger diameters compared to the channel created local electric field gradients which, doubtless, hindered separation. It is a promising device that could lead the way toward portable and affordable medical devices.