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Biosensor

  • US 20050072670A1
  • Filed: 12/27/2002
  • Published: 04/07/2005
  • Est. Priority Date: 03/01/2002
  • Status: Abandoned Application
First Claim
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1. A biosensor comprising:

  • an insulating base plate;

    an electrode system having a working electrode and a counter electrode which are provided on said base plate;

    a reaction layer including at least oxidoreductase and an electron mediator;

    a sample solution supply pathway which includes said electrode system and said reaction layer and has an inlet and an air aperture;

    a sample solution supply part for introducing a sample solution, which is in position apart from said sample solution supply pathway; and

    a first filter which is disposed between said sample solution supply pathway and said sample solution supply part for filtering said sample solution, where a filtrate filtered with said first filter is supplied into said sample solution supply pathway due to capillary action, characterized in that the direction in which said sample solution passes through said first filter and the direction in which said filtrate passes through said sample solution supply pathway cross at right angles.

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