Fig. 2
The activity of CAT (a, b), SOD (c, d) and GPX (e, f) in the presence of AgNPs or Ag+ at different concentrations. Condition: pH 7.4, T = 298 K, C(CAT) = 2 × 10−7 mol/L, C(SOD) = 2 × 10−7 mol/L, C(GPX) = 1.6 × 10−6 mol/L