| 摘要 |
It is an object of the present invention to provide a biosensor having excellent preservation stability. The present invention provides a biosensor wherein a first hydrophilic polymer layer is immobilized on a self-assembled membrane applied onto the surface of a metal substrate, a second hydrophilic polymer layer is applied onto the first hydrophilic polymer layer, and the total film thickness of the first hydrophilic polymer layer and the second hydrophilic polymer layer in a dry state is between 20 nm and 100 nm.
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