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. 2022 Feb 1;29(4):2223–2240. doi: 10.1007/s10570-022-04441-9

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Fig. 5 — Peroxidase-like catalytic kinetic of different cellulose-functionalized substrates with nanoparticles of Fe_xO_y (samples 1 and 2) and CoO_x. A Spectra of the reaction at different time intervals showing the appearance of an intense band corresponding to the oxidation of TMB by H₂O₂ catalyzed by the substrate. B Absorbance at 664 nm as a function of time for the three different substrates