Preparation of biosensor having a layer containing an enzyme, electron acceptor and hydrophilic polymer on an electrode system
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United States of America Patent
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Jul 20, 1993
Grant Date -
N/A
app pub date -
Nov 26, 1990
filing date -
Nov 24, 1989
priority date (Note) -
Expired
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Abstract
The present invention relates to a process of preparation of a biosensor comprising forming an electrode system mainly containing carbon on an insulating base plate, treating the surface of electrode system with an organic solvent, and then arranging a reaction layer on the electrode system to give a unified element. The reaction layer contains an enzyme, electron acceptor and a hydrophilic polymer. Treatment with the organic solvent improves adhesion of the reaction layer to the electrode system. The electrode system contains a working electrode and a counter electrode. The electrode system is formed from a carbon paste containing a resin binder. Treatment is preferably carried out by wiping the surface of the electrodes with a material impregnated by the organic solvent.
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