C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
150/15, 324/23,
C12M 1/40 (2006.01) A61B 5/00 (2006.01) C12Q 1/00 (2006.01) C12Q 1/68 (2006.01) G01N 27/26 (2006.01)
Patent
CA 1219040
ABSTRACT OF THE DISCLOSURE This invention relates to equipment and methods for detecting the presence of, measuring the amount of, and/or monitoring the level of, one or more selected components in a liquid mixture, employing an electrode sensing system. We have discovered that a class of mediating compounds has extremely useful properties for mediating the transfer of charge between enzyme-catalysed reactions and electrode surfaces in electrode sensing systems. Specifically, the specification discloses as electrode sensor mediators, organometallic compounds composed of at least two organic rings, each of which has at least two double bonds in a conjugated relationship; a metal atom is in electron-sharing contact with those rings. An enzyme capable of catalyzing a reaction at a rate representative of the selected compound concentration is in contact with an assay mixture, and the mediator compound transfers charge between the enzyme and the conductive surface of the electrode at a rate representative of the enzyme catalyzed reaction rate.
453581
Higgins Irving J.
Hill Hugh A.o.
Plotkin Elliot V.
Genetics International Inc.
Marks & Clerk
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