“…Among them, the explorations of metal oxide, metal, metal sulfide, carbon, and metal–organic frameworks have aroused remarkable interest. 42–46 Nanozymes with peroxidase-like activity can catalyze reactions of H 2 O 2 and H 2 O 2 -related substrates, widely applied for biosensors and biomedicine. 47–51 In these peroxidase-like nanozyme-catalyzed systems, substrates such as 3,3′,5,5′-tetramethylbenzidine, 2,2′-azino-bis-3-ethyl-benzothiazoline-6-sulfonic acid, o -phenylene-diamine dihydrochloride, Trinder's reagents, terephthalic acid, luminol, and others are often applied to generate signal products in the presence of H 2 O 2 .…”