Independent trapping and manipulation of microparticles using dexterous acoustic tweezers | Zendy

C. R. P. Courtney | Zendy; Christine Démoré | Zendy; Hongxiao Wu | Zendy; A. Grinenko | Zendy; Paul D. Wilcox | Zendy; S. Cochran | Zendy; Bruce W. Drinkwater | Zendy

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Independent trapping and manipulation of microparticles using dexterous acoustic tweezers

Author(s) -

C. R. P. Courtney,

Christine Démoré,

Hongxiao Wu,

A. Grinenko,

Paul D. Wilcox,

S. Cochran,

Bruce W. Drinkwater

Publication year - 2014

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4870489

Subject(s) - optical tweezers , tweezers , superposition principle , spheres , bessel function , trapping , materials science , acoustic radiation force , microfluidics , radiation pressure , acoustics , ultrasonic sensor , optics , nanotechnology , physics , ultrasound , ecology , quantum mechanics , astronomy , biology

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 2.35 MHz which generates ultrasonic pressure fields in a millimeter-scale fluid-filled chamber. The manipulation capabilities were demonstrated experimentally with 45 and 90-μm-diameter polystyrene spheres. These capabilities bring the dexterity of acoustic tweezers substantially closer to that of optical tweezers.

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