Novel biomimetic enzyme for sensitive detection of superoxide anions

The schematic diagram was shown the formation of Fe3O4@PS/PDA/SiO2-Mn3(PO4)2 nanotubes and the stepwise construction process of modified magnetic glassy carbon electrode (MGCE) for detection of superoxide anions. The magnetic polymeric nanotubes that decorated by Mn3(PO4)2 nanoparticles could effectively catalyze the dismutation of O2
- − that attributed to its high surface areas and a large number of active sites of self-assembled Mn3(PO4)2 nanoparticles. This method combining nanotechnology and self-assembly technique provided a new appropriate platform to design and fabricate electrochemical sensor with high performance.229