Fig. 2: UOX-like activity and specificity of Ni-DAB.
From: Metal-ligand dual-site single-atom nanozyme mimicking urate oxidase with high substrates specificity
a Changes in UV-vis absorption spectra of UA catalyzed by Ni-DAB. b Mass spectra of UA and catalytic product of UA by Ni-DAB. c The Michaelis–Menten curves for UA catalysis by Ni-DAB. The solution was saturated with air (dissolved O2: 8.5 mg/L) (n = 3 independent experiments). d Normalized UOX-like activity of Ni-DAB, Ni-DAB/C, and Pt/C at different pH value (n = 3 independent experiments). e The catalytic activity of various oxidase substrates by Ni-DAB, Ni-DAB/C, and Pt/C (n = 3 independent experiments). All data are presented as mean ± SD. “arb. units” refers to arbitrary units. Source data are provided with the paper.
