| 摘要 |
The present invention has a feature to form a biocompatible dielectric thin film on the surface of a metal electrode in a biosensor constructing a biochip. When using such a biocompatible dielectric thin film, this non-specific adsorption between a protein such as enzyme and a metal electrode can be prevented. Therefore, the present invention can escape a phenomenon that inhibits the reaction of a biomolecule due to the non-specific adsorption on the surface of a metal electrode. In addition, when the dielectric thin film having a high dielectric constant, as a biocompatible dielectric thin film, is made on the surface of a metal electrode, the sensitivity of an electrical detection according to the reaction of a biomolecule can be improved.
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