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Implantable power sources and sensors

  • US 7,951,357 B2
  • Filed: 07/13/2005
  • Issued: 05/31/2011
  • Est. Priority Date: 07/14/2004
  • Status: Active Grant
First Claim
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1. Apparatus for detecting a concentration of a substance in a subject, the apparatus comprising:

  • a fluorescence resonance energy transfer (FRET) measurement device; and

    a housing adapted to be implanted in the subject, the housing comprisingcells genetically engineered to produce, in situ, a FRET protein having a FRET complex comprising a fluorescent protein donor, a fluorescent protein acceptor, and a binding site for the substance.

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