Patent ID: 8475638
Filing Date: 2013-07-02
Classification: C12Q,G01N

Abstract:
1. A biosensor for quantifying a substrate contained in a sample liquid comprising: a first insulating support; a second insulating support; an electrode system having at least a measuring electrode, a counter electrode including a first portion and a second portion, and a detecting electrode; a spacer configured to define a specimen supply path for introducing the sample liquid over the electrode system; wherein the electrode system is arranged from a tip of the specimen supply path to a downstream portion of the specimen supply path in a following order: the first portion of the counter electrode, the measuring electrode, the second portion of the counter electrode and the detecting electrode; wherein the second insulating support has an air hole which is formed over a downstream portion of the detecting electrode; and wherein, in a planer view, a tip of the detecting electrode positioned within the specimen supply path has a V-shape and is covered by the second insulating support, and the downstream portion of the detecting electrode is exposed to the air hole.