Abstract: A biosensor test strip includes: a first working electrode and a second working electrode formed on a base plate, having the second working electrode circumferentially surrounding the first working electrode to define a reaction pool within the second working electrode having a biological reagent provided in the reaction pool. Upon feeding a liquid sample of a user or patient into the reaction pool, the liquid sample will be well retained in the reaction pool to be reacted with the reagent to produce a signal which is then converted to be a readable data as displayed on a measurement apparatus or meter.

Abstract: A biosensor test strip includes: a first working electrode and a second working electrode formed on a base plate, having the second working electrode circumferentially surrounding the first working electrode to define a reaction pool within the second working electrode having a biological reagent provided in the reaction pool. Upon feeding a liquid sample of a user or patient into the reaction pool, the liquid sample will be well retained in the reaction pool to be reacted with the reagent to produce a signal which is then converted to be a readable data as displayed on a measurement apparatus or meter.

Abstract: A biochemical sensor includes a substrate with a printing surface, an intermediate layer, and a cover. The printing surface includes a reactive film, two electrode films, a conductive electrode film, and a referential electrode film. The conductive electrode film is arranged between the two electrode films. Each ends of the two electrode films contacts with the reactive film. One end of the conductive electrode film, proximate to the reactive film, contacts with one of the two electrode films. The referential electrode film and one of the two electrode films are arranged on the relative two sides of the printing surface. One end of the referential electrode film extends to contact with the reactive film. The intermediate layer has a notch corresponding to the reactive film, and the cover has an test slot corresponding to the notch. The intermediate layer and the cover are sequentially covered on the substrate.