Biosensor
First Claim
1. A biosensor, comprising:
- an insulative substrate and an electrode system on the insulative substrate,wherein the electrode system comprises a reaction reagent that can react with samples to be detected thereon, functional electrodes for detection, and assisted diffusion electrodes for controlling the diffusion of the reaction reagent, wherein the functional electrodes are located between the assisted diffusion electrodes, andan insulating layer that covers part of the electrode system, the insulating layer having a hole forming a closed region, wherein the reaction reagent is located in the closed region on the electrode system, the closed region is surrounded by the insulating layer and comprises a closed boundary without any sharp angle, and the reaction reagent covering the closed region without extending beyond the closed boundary.
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Accused Products
Abstract
A biosensor comprising an insulative substrate (1) and an electrode system arranged on the insulative substrate (1). The electrode system comprises thereon a reagent capable of reacting with a test sample. The electrode system comprises functional electrodes (2, 3, and 4) used for testing and assisted diffusion electrodes (12) used for controlling the diffusion of the reagent. The functional electrodes (2, 3, and 4) are arranged between the assisted diffusion electrodes (12). Because the assisted diffusion electrode (12) are capable of overcoming the effect of surface tension of the insulative base board, the reagent is allowed to diffuse smoothly and uniformly on the electrode system and to arrive at a predetermined position.
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Citations
7 Claims
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1. A biosensor, comprising:
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an insulative substrate and an electrode system on the insulative substrate, wherein the electrode system comprises a reaction reagent that can react with samples to be detected thereon, functional electrodes for detection, and assisted diffusion electrodes for controlling the diffusion of the reaction reagent, wherein the functional electrodes are located between the assisted diffusion electrodes, and an insulating layer that covers part of the electrode system, the insulating layer having a hole forming a closed region, wherein the reaction reagent is located in the closed region on the electrode system, the closed region is surrounded by the insulating layer and comprises a closed boundary without any sharp angle, and the reaction reagent covering the closed region without extending beyond the closed boundary. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification