Figure 5.

Kinetic analyses of (a) N_hep, (b) N_cit, (c) N_CMD, (d) N_gly, (e) N_PLL, and (f) N_PEI. Steady-state catalysis rates were calculated from the initial slopes of absorbance versus time curves. Experiments were conducted by adding 50 μL of nanoparticle suspensions (0.35 mg Fe/mL) into solutions containing 100 μL of 530 mmol/L H₂O₂ and different concentrations of (A) TMB; and (B) ABTS substrate at room temperature. Points represent experimental data and color curves correspond to calculated fits using the Michaelis-Menten model.