Courtney, C.R.P., Ong, C.-K., Drinkwater, B.W., Wilcox, P.D., Demore, C., Cochran, S. , Glynne-Jones, P. and Hill, M. (2010) Manipulation of microparticles using phase-controllable ultrasonic standing waves. Journal of the Acoustical Society of America, 128(4), EL195. (doi: 10.1121/1.3479976) (PMID:20968325)
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Abstract
A method of manipulating microparticles in a liquid using ultrasound is proposed and demonstrated. An ultrasonic standing wave with nodal planes whose positions are controllable by varying the relative phase of two applied sinusoidal signals is generated using a pair of acoustically matched piezoelectric transducers. The resulting acoustic radiation force is used to trap micron scale particles at a series of arbitrary positions (determined by the relative phase) and then move them in a controlled manner. This method is demonstrated experimentally and 5 μm polystyrene particles are trapped and moved in one dimension through 140 μm.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Cochran, Professor Sandy |
| Authors: | Courtney, C.R.P., Ong, C.-K., Drinkwater, B.W., Wilcox, P.D., Demore, C., Cochran, S., Glynne-Jones, P., and Hill, M. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Journal of the Acoustical Society of America |
| Publisher: | Acoustical Society of America |
| ISSN: | 0001-4966 |
| ISSN (Online): | 1520-8524 |
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