Fig. 5From: Antigen-labeled mesoporous silica-coated Au-core Pt-shell nanostructure: a novel nanoprobe for highly efficient virus diagnosisColour evolution and UV-Vis of catalytical oxidation of TMB. Inset: Photography of the mixture of TMB and H2O2 in the absence of (a) and in the presence of (b) antigen-labeled Au@Pt@SiO2 nanozyme. The corresponding extinction spectra and visual colour changes were recorded after 10 min of incubationBack to article page