Leadway (hk) Limited

Ziyi Zhang

Jinn-Nan Lin

Chia-Lin Wang

Huanxi Ge

A biosensor comprising an insulative substrate () and an electrode system arranged on the insulative substrate (). The electrode system comprises thereon a reagent capable of reacting with a test sample. The electrode system comprises functional electrodes (, and) used for testing and assisted diffusion electrodes () used for controlling the diffusion of the reagent. The functional electrodes (, and) are arranged between the assisted diffusion electrodes (). Because the assisted diffusion electrode () 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.

Biosensor

A biosensor for quantifying an analyte in a sample and usage thereof are provided. The biosensor includes an insulative substrate, a cover, a sample supply port, an electrode system including at least a working electrode, a counter electrode and a third electrode, and a reaction layer at least formed over the working electrode. The third electrode, used for estimating whether the amount of the sample is sufficient, is disposed nearer to the sample supply port than the counter electrode is. Whether the amount of the added sample is sufficient is estimated by comparing the electrical current value detected between the working electrode and the counter electrode with the electrical current value detected between the working electrode and the third electrode. This invention has a simple structure and produces accurate measurements.

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Zhejiang, China

Ziyi Zhang