Figure 5.

(A) Schematic fabrication and biosensing mechanism of BSA-PtNP@MnCo₂O₄-based highly-efficient enzyme cascade glucose biosensing platform; (B) schematic fabrication of GOD-GA-Ni/Cu-MOFs-FET electrode for glucose biosensing. (Step “i”) The FET was suspended on the surface of reaction solution with mixed bimetallic ions. (Step “ii”) The Ni/Cu-MOFs was developed by dipping GA and GOD successively for enzymatic reaction. (Step “iii”) Ions produced from the enzymatic reaction of glucose collected on the surface of bimetallic MOFs surface, and the oxidized products of glucose; (C) the fabrication steps of NiCo/C electrode for nonenzymatic glucose biosensing. Reproduced with permission from Refs. [83,84,86].