Photoelectrochemical determination for acid phosphatase activity based on an electron inhibition strategy

In the present work, inspired by the excellent photoelectrochemical (PEC) properties of TiO2 and g-C3N4, a simple and sensitive TNA/g-C3N4/DAT sensor for determination of acid phosphatase (ACP) was constructed based on the electron inhibition performance of 3,5-diamino-1,2,4-triazole (DAT) and coordination of Fe(II) with DAT. DAT was oxidized by sodium nitrite to its diazonium salt and then was electrochemically grafted onto the surface of...