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1. (WO2010123453) DEVICE AND METHOD FOR MANIPULATING PARTICLES UTILIZING SURFACE ACOUSTIC WAVES

Pub. No.:    WO/2010/123453    International Application No.:    PCT/SE2010/050455
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Sat Apr 24 01:59:59 CEST 2010
IPC: B01L 3/00
B01D 43/00
B01J 19/10
G01N 29/22
Applicants: JOHANSSON, Linda
ENLUND, Johannes
KATARDJIEV, Ilia
YANTCHEV, Ventsislav
Inventors: JOHANSSON, Linda
ENLUND, Johannes
KATARDJIEV, Ilia
YANTCHEV, Ventsislav
Title: DEVICE AND METHOD FOR MANIPULATING PARTICLES UTILIZING SURFACE ACOUSTIC WAVES
Abstract:
The present invention provides a device and a method for particle manipulation utilizing interface acoustic waves. The device comprises a cavity (3) for a fluid formed at an interface between a piezoelectric substrate (1) and channel-forming substrate (2). An acoustic generator (4), such as one or more inter digital transducers, is arranged to excite surface acoustic waves which are converted to interface acoustic waves when entering the interface such that acoustic energy is efficiently transferred into the cavity (3) to create standing acoustic waves (6), whereby acoustic primary radiation forces associated with the standing acoustic waves (6) enable to focus or direct the particles (7) suspended in the fluid.