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 proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)


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
Number of pages4
Publication statusPublished - 1 Dec 2013
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, United Kingdom
Duration: 21 Jul 201325 Jul 2013


Conference2013 IEEE International Ultrasonics Symposium, IUS 2013
Country/TerritoryUnited Kingdom


  • 2D particle manipulation component
  • Acoustic radiation pressure
  • Particle patterning


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