Manipulation of microspheres and microbubbles in an octagonal sonotweezers

A. L. Bernassau, C. R. P. Courtney, J. Beeley, B. W. Drinkwater, D. R. S. Cumming

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

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.
Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium, IUS, 2013
Pages1903-1906
Number of pages4
DOIs
Publication statusPublished - 21 Jul 2013
EventIEEE International Ultrasonics Symposium, IUS, 2013 - Prague Convention Center (PCC), Prague, Czech Republic
Duration: 21 Jul 201325 Jul 2013

Conference

ConferenceIEEE International Ultrasonics Symposium, IUS, 2013
CountryCzech Republic
CityPrague
Period21/07/1325/07/13

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