Fig. 4From: Highly sensitive and robust peroxidase-like activity of Au–Pt core/shell nanorod-antigen conjugates for measles virus diagnosisSteady state kinetic assays of HRP-antigen conjugates (a–d) and Au@Pt NR-antigen conjugates (e–h). The catalytic oxidation of TMB in the presence of H2O2 was tested. For TMB as the substrate, the H2O2 concentration was fixed at 20 mM. For H2O2 as the substrate, the TMB concentration was fixed at 1 mMBack to article page