Interactive manipulation of microparticles in an octagonal sonotweezer

Bernassau, A.L., Courtney, C.R.P., Beeley, J., Drinkwater, B.W. and Cumming, D.R.S. (2013) Interactive manipulation of microparticles in an octagonal sonotweezer. Applied Physics Letters, 102(16), 164101. (doi: 10.1063/1.4802754)

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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:Articles
Glasgow Author(s) Enlighten ID:Cumming, Professor David and Bernassau, Dr Anne and Beeley, Dr James
Authors: Bernassau, A.L., Courtney, C.R.P., Beeley, J., Drinkwater, B.W., and Cumming, D.R.S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Publisher:American Institute of Physics
ISSN (Online):1077-3118
Published Online:22 April 2013

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
487271Electronic sonotweezers: particle manipulation with ultrasonic arraysDavid CummingEngineering & Physical Sciences Research Council (EPSRC)EP/G011494/1ENG - ENGINEERING ELECTRONICS & NANO ENG