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Particle Switching Systems and Methods Using Acoustic Radiation Pressure

  • US 20090053686A1
  • Filed: 09/26/2008
  • Published: 02/26/2009
  • Est. Priority Date: 04/02/2007
  • Status: Active Grant
First Claim
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1. A method for acoustically manipulating a particle using radial acoustic focusing comprising:

  • introducing into a channel a first fluid having a first acoustic contrast with a population of particles suspended therein;

    introducing into the channel a second fluid having a second acoustic contrast that is greater than or equal to the acoustic contrast of the first fluid;

    applying a radial acoustic radiation pressure to the channel; and

    acoustically focusing at least a portion of the population of particles from the first fluid to the second fluid.

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