Enzymatic electrode and its preparation method
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United States of America Patent
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Dec 21, 1993
Grant Date -
N/A
app pub date -
Oct 16, 1990
filing date -
Apr 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An enzymatic electrode, having a homogeneous composition throughout, consists essentially of a uniform intimate admixture of a conducting powder with at least one immobilized enzyme, or with an immobilized enzyme and a mediator agent or a co-enzyme, in a matrix. The electrode is one which has a surface available for direct contact with a substrate without a permeable or semi-permeable intermediate membrane or membranes. The enzymatic electrode is prepared, e.g., by intimately admixing (a) a homogeneous paste or matrix (resulting from an intimate admixture of a conducting powder with a binder), (b) at least one enzyme and (c) an enzyme crosslinking solution, and then incorporating therein a mediator agent and/or a co-enzyme.
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