Acoustofluidics 24: theory and experimental measurements of acoustic interaction force.

Sepehrirahnama, S; Ray Mohapatra, A; Oberst, S; Chiang, YK; Powell, DA; Lim, K-M

Acoustofluidics 24: theory and experimental measurements of acoustic interaction force.

Sepehrirahnama, S

Ray Mohapatra, A Oberst, S

Chiang, YK Powell, DA Lim, K-M

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Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Lab Chip, 2022, 22, (18), pp. 3290-3313
Issue Date:: 2022-09-13

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Field	Value	Language
dc.contributor.author	Sepehrirahnama, S https://orcid.org/0000-0002-3280-3321
dc.contributor.author	Ray Mohapatra, A
dc.contributor.author	Oberst, S https://orcid.org/0000-0002-1388-2749
dc.contributor.author	Chiang, YK
dc.contributor.author	Powell, DA
dc.contributor.author	Lim, K-M
dc.date.accessioned	2023-01-17T21:52:38Z
dc.date.available	2023-01-17T21:52:38Z
dc.date.issued	2022-09-13
dc.identifier.citation	Lab Chip, 2022, 22, (18), pp. 3290-3313
dc.identifier.issn	1473-0197
dc.identifier.issn	1473-0189
dc.identifier.uri	http://hdl.handle.net/10453/165085
dc.description.abstract	The motion of small objects in acoustophoresis depends on the acoustic radiation force and torque. These are nonlinear phenomena originating from wave scattering, and consist of primary and secondary components. The primary radiation force is the force acting on an object due to the incident field, in the absence of other objects. The secondary component, known as acoustic interaction force, accounts for the interaction among objects, and contributes to the clustering patterns of objects, as commonly observed in experiments. In this tutorial, the theory of acoustic interaction forces is presented using the force potential and partial-wave expansion approaches, and the distinguishing features of these forces such as rotational coupling and non-reciprocity are described. Theoretical results are compared to experimental measurements of interaction forces using a glass micro-capillary setup to explain the practical challenges. Finally, the phenomenon of clustering patterns induced by the close-range interaction of objects is demonstrated to point out the considerations about multiple collision and the predicted clustering patterns entirely due to the interaction force. Understanding the principles of acoustic interaction enables us to develop novel acoustofluidic applications beyond the typical processing of large populations of particles and with focus on the controlled manipulation of small clusters.
dc.format	Electronic
dc.language	eng
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation	http://purl.org/au-research/grants/arc/DP200100358
dc.relation	http://purl.org/au-research/grants/arc/DP200101708
dc.relation.ispartof	Lab Chip
dc.relation.isbasedon	10.1039/d2lc00447j
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Analytical Chemistry
dc.subject.mesh	Acoustics
dc.subject.mesh	Mechanical Phenomena
dc.subject.mesh	Motion
dc.subject.mesh	Torque
dc.subject.mesh	Acoustics
dc.subject.mesh	Torque
dc.subject.mesh	Motion
dc.subject.mesh	Mechanical Phenomena
dc.title	Acoustofluidics 24: theory and experimental measurements of acoustic interaction force.
dc.type	Journal Article
utslib.citation.volume	22
utslib.location.activity	England
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2023-01-17T21:52:36Z
pubs.issue	18
pubs.publication-status	Published online
pubs.volume	22
utslib.citation.issue	18

Abstract:

The motion of small objects in acoustophoresis depends on the acoustic radiation force and torque. These are nonlinear phenomena originating from wave scattering, and consist of primary and secondary components. The primary radiation force is the force acting on an object due to the incident field, in the absence of other objects. The secondary component, known as acoustic interaction force, accounts for the interaction among objects, and contributes to the clustering patterns of objects, as commonly observed in experiments. In this tutorial, the theory of acoustic interaction forces is presented using the force potential and partial-wave expansion approaches, and the distinguishing features of these forces such as rotational coupling and non-reciprocity are described. Theoretical results are compared to experimental measurements of interaction forces using a glass micro-capillary setup to explain the practical challenges. Finally, the phenomenon of clustering patterns induced by the close-range interaction of objects is demonstrated to point out the considerations about multiple collision and the predicted clustering patterns entirely due to the interaction force. Understanding the principles of acoustic interaction enables us to develop novel acoustofluidic applications beyond the typical processing of large populations of particles and with focus on the controlled manipulation of small clusters.

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http://hdl.handle.net/10453/165085