▎ 摘　　要

NOVELTY - The sensor has a graphene radial electrode clamped in an insulating course and provided with anode and cathode. A nanometer pore passage runs through the insulating course, and is provided with an axial electrode i.e. platinum electrode. The anode and the cathode are respectively arranged at two ends of the nanometer pore passage along radial direction. A radial current meter is connected between the anode and the cathode of the radial electrode in series. A connecting wire between two spare radial electrodes is arranged vertical to a connecting wire between two radial electrodes. USE - Graphene-based nanometer pore unimolecular sensor. ADVANTAGE - The graphene electrode is clamped in the insulating course so as to improve the structural strength. The sensor identifies medium in the passage by measuring weak change of axial and radial currents when the medium passes through a nanometer pore. The sensor is simple in structure, and comprehensively analyzes radial current and axial current so as to obtain higher flexibility and identification rate. The sensor detects the medium passing through a hole by analysis and analyzes property of the medium by analyzing the status of the hole via the measured medium. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene-based nanometer pore unimolecular sensor.