A silicon microfluidic ultrasonic separator


Harris, N.R., Hill, M., Beeby, S., Shen, Y., White, N.M., Hawkes, J.J. and Coakley, W.T. (2003) A silicon microfluidic ultrasonic separator. Sensors and Actuators B: Chemical, 95, (1-3), 425-434. (doi:10.1016/S0925-4005(03)00448-9).

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Description/Abstract

Ultrasonic standing waves can be used to generate forces on particles within a fluid. Such forces have a number of potential applications in microfluidic devices. This paper describes a device that provides filtration on a microfluidic scale. It is microfabricated and uses ultrasound in the megahertz frequency range to concentrate particles at a node within the flow. It offers the possibility of a functional equivalent of a centrifugal separator for microfluidic systems. It is constructed using silicon and Pyrex, and hence is compatible with established microfabrication techniques. The modelling, design, fabrication and control of the device are discussed.

Item Type: Article
ISSNs: 0925-4005 (print)
Related URLs:
Keywords: microfluidic, microengineering, ultrasonic
Subjects: Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
University Structure - Pre August 2011 > School of Electronics and Computer Science
ePrint ID: 22478
Date Deposited: 21 Mar 2006
Last Modified: 27 Mar 2014 18:11
Contact Email Address: nrh@ecs.soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/22478

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