Fig. 4
From: Gold nanoparticle-labeled biosensor for rapid and sensitive detection of bacterial pathogens
Differential pulse voltammetric sensorgrams of the gold nanoparticle (AuNPs) and Polyaniline (PANI)-coated magnetic nanoparticles (MNPs). AuNPs show a current peak at 0.3 V and MNPs show a current peak at 0.58 V