Measuring the 3D motion of particles in microchannel acoustophoresis using astigmatism particle tracking velocimetry

P. Augustsson, Rune Barnkob, Henrik Bruus, C. J. Kähler, T. Laurell, Á. G. Marín, M. Rossi

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We introduce full three-dimensional tracking of particles in an acoustophoresis microchannel using Astigmatism Particle Tracking Velocimetry (APTV) [1]. For the first time the interaction between acoustic streaming and the primary acoustic radiation force in microchannel acoustophoresis are examined in three dimensions. We have quantified the velocity of particles driven by the primary acoustic radiation force and acoustic streaming, respectively, using 0.5-μm and 5-μm particles. Increased ultrasound frequency and lowered viscosity of the medium reduced the influence of acoustic streaming relative to the influence from the acoustic radiation force. The current study opens the route to optimized acoustophoretic system design and operation to enable manipulation of small biological components such as spores, bacteria and viruses.
Original languageEnglish
Title of host publicationProceedings of the MicroTAS 2012 Conference
Publication date2012
Pages1480-1482
ISBN (Print)978-0-9798064-5-2
Publication statusPublished - 2012
Event16th International Conference of Miniaturized Systems for Chemistry and Life Sciences - Okinawa Convention Center, Okinawa, Japan
Duration: 28 Oct 20121 Nov 2012
Conference number: 16
http://www.microtas12.org/

Conference

Conference16th International Conference of Miniaturized Systems for Chemistry and Life Sciences
Number16
LocationOkinawa Convention Center
Country/TerritoryJapan
CityOkinawa
Period28/10/201201/11/2012
Internet address

Fingerprint

Dive into the research topics of 'Measuring the 3D motion of particles in microchannel acoustophoresis using astigmatism particle tracking velocimetry'. Together they form a unique fingerprint.

Cite this