A Novel Signal-Amplified Immunoassay for the Detection of C-Reactive Protein Using HRP-Doped Magnetic Nanoparticles as Labels with the Electrochemical Quartz Crystal Microbalance as a Detector
Figure 3
SEM images of (a) Fe3O4@SiO2, (b) Fe3O4@SiO2@Au, (c) Fe-Au MNPs-anti-CRP2/HRP signal tag, (d) c in absence (right) and presence (left) of magnetic field.