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

doi:10.1109/ULTSYM.2013.0485

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 proceeding › Conference Contribution (Conference Proceeding)

2 Citations (Scopus)

Abstract

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 language	English
Title of host publication	IEEE International Ultrasonics Symposium, IUS
Pages	1903-1906
Number of pages	4
DOIs	https://doi.org/10.1109/ULTSYM.2013.0485
Publication status	Published - 1 Dec 2013
Event	2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, United Kingdom Duration: 21 Jul 2013 → 25 Jul 2013

Conference

Conference	2013 IEEE International Ultrasonics Symposium, IUS 2013
Country	United Kingdom
City	Prague
Period	21/07/13 → 25/07/13

Keywords

2D particle manipulation component
Acoustic radiation pressure
Particle patterning

Access to Document

10.1109/ULTSYM.2013.0485

Link to publication in Scopus

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title = "Manipulation of microspheres and microbubbles in an octagonal sonotweezers",

abstract = "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.",

keywords = "2D particle manipulation component, Acoustic radiation pressure, Particle patterning",

author = "Bernassau, {A. L.} and Courtney, {C. R P} and J. Beeley and Drinkwater, {B. W.} and Cumming, {D. R S}",

year = "2013",

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doi = "10.1109/ULTSYM.2013.0485",

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AU - Bernassau, A. L.

AU - Courtney, C. R P

AU - Beeley, J.

AU - Drinkwater, B. W.

AU - Cumming, D. R S

PY - 2013/12/1

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N2 - 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.

AB - 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.

KW - 2D particle manipulation component

KW - Acoustic radiation pressure

KW - Particle patterning

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M3 - Conference Contribution (Conference Proceeding)

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EP - 1906

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