摘要 |
Described is an amperometric biosensor in thick film technology for the detection an/or determination of substances undergoing enzyme catalyzed reactions, especially glucose or lactate, comprising an inert carrier material, at least one transducer layer exhibiting a specific electrical conductivity chi>10<SUP>4 </SUP> Omega-<SUP>1</SUP>cm-<SUP>1</SUP>, and at least one bioactive layer with diffusion barrier function containing at least one enzyme specifically reacting with said substance to be measured, said bioactive layer exhibiting a specific electrical conductivity chi<1 omega-<SUP>1</SUP>cm-<SUP>1 </SUP>and said bioactive layer further effectively hinders other electroactive substances to reach the transducer layer within the time of measurement.
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