| abstract |
(57) [Summary] [Objective] To provide a high-performance biosensor which is not affected by components other than the substrate coexisting in the sample solution and a method for producing the same. [Structure] An electrode system having a working electrode and a counter electrode formed on an electrically insulating substrate, a reaction layer containing a hydrophilic polymer, an enzyme, and an electron acceptor disposed on the electrode system, and a reaction layer A biosensor comprising a polymer gel particle layer formed of polystyrene, polyacrylamide, or the like formed on the substrate. |