Fig. 3
From: NOS-like activity of CeO2 nanozymes contributes to diminishing the vascular plaques
NOS-like activity of CeO2NPs is original and associated with multiple factors. All detection is based on Griess Reagents by counting the absorbance at 560 nm. (A) The concentration of L-Arg is fixed at 0.29 mg/mL, and then NO level is measured in CeO2NPs/L-Arg system with different CeO2NPs concentrations (n = 6). (B) The concentration of CeO2NPs is fixed at 1 mM (Ce element), and NO level is measured in CeO2NPs/L-Arg system with different L-Arg concentrations (n = 6). (C) As the conditions in (A), where CeO2NPs is replaced by Fe3O4NPs and AuNPs. L-Arg concentration is fixed at 0.29 mg/mL, CeO2NPs concentration is fixed at 1 mM, evaluating the effects of reaction time (D), temperature (E) and pH (F) on NO level (n = 3)