Enzymatic electrode and its preparation method
First Claim
1. An enzymatic electrode in the form of a matrix comprising a substantially homogenous admixture of a conducting powder and a member selected from the group consisting of (a) at least one immobilized enzyme, (b) an immobilized enzyme and a mediator agent and (c) an immobilized enzyme and a co-enzyme, wherein neither the mediator agent nor the co-enzyme is crosslinked to the matrix.
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Accused Products
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.
212 Citations
20 Claims
- 1. An enzymatic electrode in the form of a matrix comprising a substantially homogenous admixture of a conducting powder and a member selected from the group consisting of (a) at least one immobilized enzyme, (b) an immobilized enzyme and a mediator agent and (c) an immobilized enzyme and a co-enzyme, wherein neither the mediator agent nor the co-enzyme is crosslinked to the matrix.
Specification