Proof of principle study of ultrasonic particle manipulation by a circular array device

Alon Grinenko*, Paul D. Wilcox, Charles R. P. Courtney, Bruce W. Drinkwater

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

30 Citations (Scopus)

Abstract

A feasibility study of a circular ultrasonic array device for acoustic particle manipulation is presented. A general approach based on Green's function is developed to analyse the underlying properties of a circular acoustic array. It allows the size of a controllable device area as a function of the number of array elements to be established and the array excitation required to produce a desired field distribution to be determined. A set of quantitative parameters characterizing the complexity of the pressure landscape is suggested, and relation to the number of array elements is found. Next, a finite-element model of a physically realizable circular piezo-acoustic array device is employed to demonstrate that the trapping capability can be achieved in practice.

Original languageEnglish
Pages (from-to)3571-3586
Number of pages16
JournalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume468
Issue number2147
DOIs
Publication statusPublished - 8 Nov 2012

Keywords

  • ultrasonics
  • acoustic radiation force
  • particle manipulation
  • VIABILITY
  • STANDING-WAVE
  • BESSEL BEAM
  • SPHERE
  • CELLS
  • MICROPARTICLES
  • PROLIFERATION
  • FRACTIONATION
  • COMPOSITE

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