Fig. 3.

a The POD-like activity of MoSe2 NUs: the UV–vis spectra of the different treatments, the inset exhibited the corresponding image. b The POD-like activity of MoSe2 NUs with or without NIR (808 nm, 1 W cm−2). c The Michaelis–Menten kinetics fitting with initial rate [V] against TMB concentrations. d Corresponding Lineweaver–Burk plots of c (n = 3).