BIOSENSOR

摘要

A biosensor (1) for electrochemically measuring a sample comprising a substrate (2) made of an insulating material, an electrode system (3) including a working electrode (3B) and a counter electrode (3A) formed on the substrate (2), a covering member (4) fixed over the substrate (2) so as to cover at least a part of the electrode system (3), a sample channel (8) provided between the substrate (2) and the covering member (4) to allow communication between the outside and a part of the electrode system (3) covered by the covering member (4), a hydrophilic section provided on at least a part of the internal surface of the sample channel(8) and extending from a first end (8A) near the electrode system (3) to a second end on the opposite side, and a hydrophobic section (12) provided on a section adjacent to the second end on the substrate (2) or on the internal surface of the sample channel (8) to temporarily stop the flow of the sample into the electrode system (3). The biosensor enables simple control of the timing at which the obtained sample is moved into a measuring section.