Enzyme-induced Fenton reaction coupling oxidation of o-phenylenediamine for sensitive and specific immunoassay

A ratiometric electrochemical strategy based on Fe (iii) and Pt (iv) for immobilization-free detection of Escherichia coli

“…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 modication process is not good for the reproducibility and stability of the sensor, and the biomolecular recognition process and signal amplication process will also be affected by the electrode.…”