Particle sizing using dielectrophoresis-active hydrophoresis

Yan, S, Zhang, J, Yuan, Y, Alici, G, Du, H, Zhu, Y and Li, W 2014, 'Particle sizing using dielectrophoresis-active hydrophoresis', in Harun Chowdhury, Firoz Alam (ed.) Proceedings of the 19th Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014), Melbourne, Australia, 8-11 December 2014, pp. 1-4.


Document type: Conference Paper
Collection: Conference Papers

Title Particle sizing using dielectrophoresis-active hydrophoresis
Author(s) Yan, S
Zhang, J
Yuan, Y
Alici, G
Du, H
Zhu, Y
Li, W
Year 2014
Conference name Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014)
Conference location Melbourne, Australia
Conference dates 8-11 December 2014
Proceedings title Proceedings of the 19th Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014)
Editor(s) Harun Chowdhury, Firoz Alam
Publisher Australasian Fluid Mechanics Society (AFMS)
Place of publication Melbourne, Australia
Start page 1
End page 4
Total pages 4
Abstract A particle sizing technique using dielectrophoresis-active hydrophoresis is presented in this study. This method can measure particle diameters without complex optical tools and electric impedance, and can be adjusted by modulating the external voltage. The separation region is designed to amplify the slight differences in the lateral positions of the particles. The calibration line is obtained from the lateral positions of standard beads and then utilised to measure the distribution of 8 μm beads with a high coefficient of variation (CV). This calibration line is tunable when distinguished voltages are applied. The diameter estimated using DEP-active hydrophoretic sizing is compared with the data obtained using the transmission electron microscope (TEM) method, and it is shown that our DEP-active hydrophpretic technique can potentially be a versatile method for sizing particles inside a microfluidic device.
Subjects Mechanical Engineering not elsewhere classified
Keyword(s) Calibration
Electric tools
Fluid mechanics
Transmission electron microscopy
Copyright notice © AFMS 2014
ISBN 9780646596952
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