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Focused acoustics for detection and sorting of fluid volumes

  • US 6,849,423 B2
  • Filed: 12/28/2001
  • Issued: 02/01/2005
  • Est. Priority Date: 11/29/2000
  • Status: Expired due to Fees
First Claim
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1. A separation method comprising the steps of:

  • (a) detecting, in a fluid having a surface and containing a plurality of localized fluid volumes having a different acoustic impedance than the fluid, a single localized volume located sufficiently near the surface for ejection;

    (b) determining whether the single localized volume possesses one or more properties;

    (c) selecting the single localized volume for ejection from the fluid based on the determination of one or more properties in step (b); and

    (d) ejecting the single localized volume from the fluid towards a suitable substrate material by use of focused radiation.

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