Fig. 3: Catalase-like catalytic activity characterization of ε-PLE@MnCoO/Gel.

a UV-vis absorption spectra of ε-PLE@MnCoO/Gel with the addition of Ti(SO4)2 solution. The concentration of ε-PLE@MnCoO nanozyme in hydrogel was varied, and the concentration of H2O2 was 1.0 mM. b Decomposition of H2O2 (1.0 mM) with and without ε-PLE@MnCoO nanozyme. c Repetitive catalytic H2O2 consumption-ability of ε-PLE@MnCoO/Gel with a repetitive addition of H2O2 (1.0 mM). d Catalytic kinetics of ε-PLE@MnCoO/Gel. The concentration of H2O2 was varied, and the initial reaction velocity (V) was monitored in PBS solution (pH 7.0) at 37 °C. e O2 generation ability with and without ε-PLE@MnCoO nanozyme. The concentration of H2O2 was 0.1 mM. f Continuous catalytic O2 generation ability of ε-PLE@MnCoO/Gel with a repetitive addition of H2O2 (0.1 mM). These data are presented as mean values ± SD (n = 3 independent experiments). Source data are provided as a Source Data file.