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), pp. 425-434. (doi:10.1016/S0925-4005(03)00448-9).


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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
Digital Object Identifier (DOI): doi:10.1016/S0925-4005(03)00448-9
ISSNs: 0925-4005 (print)
Keywords: microfluidic, microengineering, ultrasonic
ePrint ID: 22478
Date :
Date Event
Date Deposited: 21 Mar 2006
Last Modified: 16 Apr 2017 22:50
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/22478

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