Journal ArticleDOI
Separation devices based on forced coincidence response of fluid‐filled pipes
Thomas L. Tolt,Donald L. Feke +1 more
TLDR
In this article, a separation process based on the acoustic radiation force created in stationary fields produced by a forced coincidence excitation at ultrasonic frequencies of fluid-filled pipes has been developed.Abstract:
A separation process based on the acoustic radiation force created in stationary fields produced by a forced coincidence excitation at ultrasonic frequencies of fluid‐filled pipes has been developed. The efficacy of this method for the collection and manipulation of fine secondary phases in flowing suspensions will be compared to equivalent operations in stationary fields generated in acoustic interferometer chambers operated without coincidence effects. The basis for the axial translation of the phases concentrated at the pressure nodes to either end of the cell as a result of an applied periodic sweep in the driving frequency will be examined.read more
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Patent
Particle handling method by acoustic radiation force and apparatus therefore
TL;DR: In this article, a chamber for exerting an ultrasound beam on a sample solution containing particles to be concentrated, separated or arranged is provided with a view toward arbitrarily controlling the shape of a spatial distribution of potential energy created by the ultrasound beam and concentrating, separating or periodically arranging the particles.
Patent
Acoustic concentration of particles in fluid flow
Michael D. Ward,Gregory Kaduchak +1 more
TL;DR: In this article, an apparatus for acoustic concentration of particles in fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path between a fluid source and a fluid outlet.
Patent
Particle handling apparatus for handling particles in fluid by acoustic radiation pressure
Kenji Yasuda,Shin-ichiro Umemura,Kenichi Kawabata,Kazuo Takeda,Kenko Uchida,Yoshinori Harada,Masao Kamahori,Kazuaki Sasaki +7 more
TL;DR: An ultrasonic manipulation apparatus has a plurality of ultrasonic wave oscillators arranged in two dimensions to trap, fix or move particles to an optional position in the solution or perform cell fusion by using a gradient force obtained by superposing one over another the gradient force fields generated by ultrasonic waves produced by a plurality.
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Ultrasonic analyte concentration and application in flow cytometry
Gregory Kaduchak,Goddard Greg,G. C. Salzman,Dipen N. Sinha,John C. Martin,Christopher S. Kwiatkowski,Steven W. Graves +6 more
TL;DR: In this article, the authors present an apparatus and corresponding method for concentrating analytes within a fluid flowing through a tube using acoustic radiation pressure, which includes a function generator that outputs a radio frequency electrical signal to a transducer that transforms the radio frequency electric signal to an acoustic signal and couples the acoustic signal to the tube.
PatentDOI
Particle analysis in an acoustic cytometer
Gregory Kaduchak,Michael D. Ward +1 more
TL;DR: In this article, a method and apparatus for acoustically manipulating one or more particles is described, which can be used to manipulate a single particle at any level of the system.