Fig. 3

Analysis of the POD-mimicking catalytic activities and the steady-state kinetics. A Schematic illustrating the mechanism of enzymatic catalysis. B Catalytic activities of different nanoparticles with concentrations ranging from 100 µg/mL to 400 µg/mL. C Catalytic performance of various nanoparticles at varying levels of reaction pH. D Catalytic activities of different nanoparticles at varying incubation temperatures. E Catalytic performance of different nanoparticles at varying reaction times. F and G Line weaver-Burk plots of the initial reaction rate versus the inverse of the substrate concentration used to detect the kinetic parameters K_m and V_max of FMA NPs with TMB or H₂O₂ as substrate