Figure 2

CV responses of (A) GCE/GO@MB, (B) GCE/GO@MB, (C) GCE/GO@MB-Ab1 (D) GCE/GO@MB-Ab1-Ag, (E) GCE/GO@MB-Ab1-BSA-Ab2-HRP, (F)GCE/GO@MB/ Ab2-HRP, (G) GCE/GO@MB-Ab1-BSA-Ag-Ab2-HRP without (Blank) and with 500 μM of H₂O₂ in pH 7 PBS at v = 10 mVs⁻¹. (H) A plot of i_pc of H₂O₂ vs different modified electrodes.