Electrochemical Detection of Sequence-Specific DNA with the Amplification of Gold Nanoparticles
Figure 1
Nyquist plots obtained at different modified electrode. (a) Bare gold electrode, (b) AuNPs, (c) MAA/AuNPs, (d) activated MAA/AuNPs, (e) ss-DNA/MAA/AuNPs, and (f) ds-DNA/MAA/AuNPs modified electrodes. The supporting electrolyte was 0.1 M KCl solution containing 5.0 mM K4Fe(CN)6/K3Fe(CN)6.