ELECTROCHEMICAL BIOSENSOR WITH SAMPLE INTRODUCTION CHANNEL CAPABLE OF UNIFORM INTRODUCTION OF SMALL AMOUNT OF SAMPLE
First Claim
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1. An electrochemical biosensor, comprising:
- a lower plate, upon which is constructed a working electrode coated with a reagent layer containing an electron transfer mediator and a redox enzyme, and a reference electrode;
a middle plate having a precut pattern of sample introduction channel composed of a sample entrance, a sample passage and an air vent; and
an upper plate or a cover that forms the sample cell structure,wherein a hydrophobic sample collection barrier formed by an insulator between the lower and middle plates is provided.
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Abstract
Disclosed is an electrochemical biosensor having a sample introduction channel in which an insulator is employed to introduce a small amount of a sample uniformly and accurately and to adjust an area of a working electrode, thereby guaranteeing the accurate quantitative analysis of a sample. Provided with a sample collection barrier at a sample entrance, the biosensor allows a sample to be introduced at higher accuracy and to be analyzed with higher reproducibility and reliability.
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8 Claims
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1. An electrochemical biosensor, comprising:
- a lower plate, upon which is constructed a working electrode coated with a reagent layer containing an electron transfer mediator and a redox enzyme, and a reference electrode;
a middle plate having a precut pattern of sample introduction channel composed of a sample entrance, a sample passage and an air vent; and
an upper plate or a cover that forms the sample cell structure,wherein a hydrophobic sample collection barrier formed by an insulator between the lower and middle plates is provided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a lower plate, upon which is constructed a working electrode coated with a reagent layer containing an electron transfer mediator and a redox enzyme, and a reference electrode;
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