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Biosensor Using Magnetic Microparticles

  • US 20120251392A1
  • Filed: 10/18/2010
  • Published: 10/04/2012
  • Est. Priority Date: 10/19/2009
  • Status: Abandoned Application
First Claim
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1. A biosensor that uses magnetic microparticles, the biosensor comprising:

  • a light source that emits light of a predetermined wavelength to a dispersion liquid that contains magnetic microparticles to which a target biomaterial can bind;

    a magnetic field generation unit that is able to apply a magnetic field, a direction of which changes at least in two directions, to the dispersion liquid;

    a light receiving unit that receives a transmitted light from the dispersion liquid; and

    a detection unit that detects whether or not the target biomaterial exists based on an amount of change in a quantity of the transmitted light received by the light receiving unit, which is caused by a direction change of the magnetic field applied by the magnetic field generation unit.

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