Fig. 1
From: Molybdenum-based nanoclusters act as antioxidants and ameliorate acute kidney injury in mice

Schematic of AKI treatment using POM nanoclusters and characterization. a Schematic illustration of POM nanoclusters in prevention of AKI. b TEM image of POM at pH = 7.4; Scale bar: 20 nm. Photographs (c) and UV–vis–NIR spectra (d) of POM before and after incubation with H2O2 at different concentrations. e Percent oxidized POM calculated from the absorbance peak in d. O2•− (f), •OH (g), and free radical (h)-scavenging activity of POM at different concentrations. X-ray photoelectron spectroscopy of POM nanoclusters before (i) and after (j) oxidizing by the ROS. In f–h, data represent means ± s.d. from three (h) or four (f, and g) independent replicates