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Proceedings Paper

Standing wave pressure fields generated in an acoustic levitation chamber
Author(s): Andrew Hancock; John S. Allen; Dustin Edward Kruse; Paul A. Dayton; Christian M. Kargel; Michael F. Insana
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Paper Abstract

We are developing an acoustic levitation chamber for measuring adhesion force strengths among biological cells. Our research has four phases. Phase I, presented here, is concerned with the design and construction of a chamber for trapping cell-sized microbubbles with known properties in acoustic standing waves, and examines the theory that describes the standing wave field. A cylindrical chamber has been developed to generate a stable acoustic standing wave field. The pressure field was mapped using a 0.4-mm needle hydrophone, and experiments were performed using 100 micron diameter unencapsulated air bubbles, 9 micron diameter isobutane-filled microbubbles, and 3 micron diameter decafluorobutane (C4F10)-filled microbubbles, confirming that the net radiation force from the standing wave pressure field tends to band the microbubbles at pressure antinodes, in accordance with theory.

Paper Details

Date Published: 30 May 2001
PDF: 11 pages
Proc. SPIE 4325, Medical Imaging 2001: Ultrasonic Imaging and Signal Processing, (30 May 2001); doi: 10.1117/12.428233
Show Author Affiliations
Andrew Hancock, Univ. of California/Davis (United States)
John S. Allen, Univ. of California/Davis (United States)
Dustin Edward Kruse, Univ. of California/Davis (United States)
Paul A. Dayton, Univ. of California/Davis (United States)
Christian M. Kargel, Univ. of California/Davis (United States)
Michael F. Insana, Univ. of California/Davis (United States)

Published in SPIE Proceedings Vol. 4325:
Medical Imaging 2001: Ultrasonic Imaging and Signal Processing
Michael F. Insana; K. Kirk Shung, Editor(s)

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