▎ 摘　　要

NOVELTY - The device has a sensing layer in the biosensor that is a hydrogel containing nucleic acid aptamers (1). The biosensor is configured to transmit the bioelectric signal generated by the blood and the nucleic acid aptamer to the data processor. The data processor is configured to process the bioelectric signal to obtain the concentration information of the myocardial infarct protein marker. The thickness of the sensing layer is 1.4 mm. The biosensor further includes a first circuit board (3) and a graphene layer provided on the first circuit board. USE - Device for detecting myocardial infarction protein markers. ADVANTAGE - The device has simple structure, small volume and portable, and convenient operation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the device for detecting myocardial infarction protein markers. Nucleic acid aptamer (1) Hydrogel (2) First circuit board (3) First electrode sheet (4) Second electrode sheet (5)