Fig. 3

a RNO/imidazole assay for the ¹O₂ production of Fe₃O₄@Chl/Fe_{[Chl: 5−200 mg]} nanoclusters, Fe₃O₄ CNPs, Chl/Fe, and the Fe₃O₄ CNPs + Chl/Fe mixture as a function of irradiation time with a 660 nm LED light (75 mW/cm²). b TMB assay for the reaction of iron-based materials at 0.5 ppm_[Fe] with 100 mM H₂O₂. c GSH assay kit for the reactions of the iron-based materials and H₂O₂