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. 2021 Jul 7;40:101243. doi: 10.1016/j.nantod.2021.101243

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© 2021 The Authors

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Fig. 4 — Characterization of peroxidase-like kinetics of Ag-TiO₂ SAN. (a) Reaction–time curves of the colorimetric reaction of TMB catalyzed by Ag-TiO₂ SAN (red), nano-Ag (blue), and nano-TiO₂ (black). (b-c) Michaelis–Menten curves for Ag-TiO₂ SAN (red), nano-Ag (blue), and nano-TiO₂ (black). (d) Generation of hydroxyl radicals by related nanomaterials with peroxidase-like catalysis. (e) Generation of hydroxyl radicals by Ag-TiO₂ SAN, as characterized by the change in fluorescence spectra in the presence of TA.