Biosensor

Chemistry: analytical and immunological testing – Involving diffusion or migration of antigen or antibody

Reexamination Certificate

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C436S518000, C436S810000, C435S007100, C435S007940, C435S287100, C435S287200, C435S287300, C435S287700, C435S805000, C435S810000, C435S970000, C422S051000, C422S051000, C422S051000, C422S067000

Reexamination Certificate

active

07598090

ABSTRACT:
A biosensor is provided with an area in which a reagent having bleaching action is carried in a state where it can be dissolved, at least in a part of a sample application area to which an inspection target solution is applied or the downstream of the sample application area in the direction of the inspection target solution permeating, in a development layer. In the so-constituted biosensor, a colored component in the inspection target solution can be faded by the bleaching reagent, so that the color in parts other than a reactive area is reduced in consequence, whereby a visual judgment is possible and a more accurate measurement result in which a reading error by a measuring device is extremely suppressed can be obtained.

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