BIOSENSOR

摘要

PURPOSE:To make the quick and accurate measurement of a substrate with a simple instrument and carrier possible by constituting the title sensor in such a manner that a blood sample reacts quickly and is filtered. CONSTITUTION:Oxido-reductase and oxidation type dye which conjugates with the enzyme react quickly in a reaction layer when the blood is dropped to the biosensor. The red blood cells and platelet are then filtered in a filter layer 7 and the filtered reaction liquid arrives at the lower liquid holding layer 6. A liquid holding layer 6 is notched in the outside peripheral part to have a space part and therefore the reaction liquid spreads over the entire surface of the liquid holding layer 6 and is filled in the space part where the electrode part consisting of a counter electrode 4 and reference electrode 5 is exposed. The reaction liquid filtered by the liquid holding layer 6 is guided quickly to the electrode part in the above-mentioned manner and the reacting weight is detected by the electrode reaction. Since the blood sample reacts and filtered in the short period in the above-mentioned manner, the accurate measurement of the substrate with the simple instrument and carrier is made possible.