Manipulation of microspheres and microbubbles in an octagonal sonotweezers

Bernassau, A., Courtney, C., Beeley, J., Drinkwater, B. and Cumming, D. (2013) Manipulation of microspheres and microbubbles in an octagonal sonotweezers. In: IEEE International Ultrasonics Symposium 2013, Prague, Czech Republic, 22-25 Jul 2013, pp. 1903-1906. (doi:10.1109/ULTSYM.2013.0485)

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Publisher's URL: http://www.ewh.ieee.org/conf/uffc/2013/

Abstract

An ultrasonic device for micro-patterning and precision manipulation of micrometre-scale particles is demonstrated. The device is formed using eight piezoelectric transducers shaped into an octagonal cavity. By exciting combinations of transducers simultaneously, with a controlled phase delay between them, different acoustic landscapes can be created, patterning micro-particles into lines, squares, and more complex shapes. When operated with all eight transducers the device can, with appropriate phase control, manipulate the two dimensional acoustic pressure gradient; it thus has the ability to position and translate a single tweezing zone to different locations on a surface in a precise and programmable manner.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Bernassau, Dr Anne and Beeley, Mr James
Authors: Bernassau, A., Courtney, C., Beeley, J., Drinkwater, B., and Cumming, D.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering

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