Manganese oxide nanowire-mediated enzyme-linked immunosorbent assay

► Schematic representation for SRB detection based on the MnO2-mediated immunoassay. ► MnO2 nanowire were capable of catalyzing oxidation TMB in the absence of H2O2. ► MnO2-mediated ELISA varied with the SRB concentration from 1.8 × 104 to 1.6 × 107 CFU mL−1