Importance

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Abstract

Miniaturized Clark-type oxygen electrodes includes a substrate having at least one recess groove formed on a surface thereof for receiving an electrolyte solution, and two electrodes acting as a cathode and an anode formed through an insulating layer on the surface of the substrate. Each of the electrodes is at least partially disposed in a bottom area of the recess. A solid or semi-solid, porous, electrolyte solution-containing material fills the recess, and an oxygen gas-permeable membrane covers and seals the recess and porous material received therein. Miniaturized biosensors are made using the oxygen electrode as a transducer. The oxygen electrodes and biosensors, which are extremely accurate, can be mass-produced and can be widely used in various fields such as clinical analysis, industrial processing, and in the determination of environmental conditions. The biosensors can be particularly used in clinical diagnosis and in monitoring devices for both in vivo and in vitro measurements.

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First Claim