“…In recent years, electrochemical sensors have become particularly attractive because of the merits of low cost, high sensitivity and fast output. [10][11][12][13] However, for traditional electrochemical biosensors, the immobilization of biometric molecules on the electrode surface is the most important step in the process of constructing a biosensor. 14,15 But, the complex electrode surface modication process is not good for the reproducibility and stability of the sensor, and the biomolecular recognition process and signal amplication process will also be affected by the electrode.…”