Independent trapping and manipulation of microparticles using dexterous acoustic tweezers

C.R.P. Courtney; C.E.M. Demore; H. Wu; A. Grinenko; P.D. Wilcox; S. Cochran; B.W. Drinkwater

doi:10.1063/1.4870489

Independent trapping and manipulation of microparticles using dexterous acoustic tweezers

C.R.P. Courtney
, C.E.M. Demore
, H. Wu
, A. Grinenko
, P.D. Wilcox
, S. Cochran
, B.W. Drinkwater

Department of Mechanical Engineering

University of Dundee
University of Bristol

Research output: Contribution to journal › Article › peer-review

208 Citations (SciVal)

48 Downloads (Pure)

Abstract

An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap particles in larger regions than is possible with first-order traps. The acoustic tweezers consist of a circular 64-element ultrasonic array operating at 2.35MHz which generates ultrasonic pressure fields in a millimeter-scale fluid-filled chamber. The manipulation capabilities were demonstrated experimentally with 45 and 90-lm-diameter polystyrene spheres. These capabilities bring the dexterity of acoustic tweezers substantially closer to that of optical tweezers.

Original language	English
Article number	154103
Pages (from-to)	1-4
Number of pages	4
Journal	Applied Physics Letters
Volume	104
Issue number	15
Early online date	14 Apr 2014
DOIs	https://doi.org/10.1063/1.4870489
Publication status	Published - 30 Apr 2014

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10.1063/1.4870489Licence: CC BY

Charles Courtney
- C.R.P.Courtneybath.acuk
- Department of Mechanical Engineering - Senior Lecturer
- Centre for Integrated Materials, Processes & Structures (IMPS)
- IAAPS
Person: Research & Teaching, Core staff, Affiliate staff

Cite this

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AU - Wilcox, P.D.

AU - Cochran, S.

AU - Drinkwater, B.W.

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Independent trapping and manipulation of microparticles using dexterous acoustic tweezers

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