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. 2019 May 7;9(25):14296–14301. doi: 10.1039/c9ra01292c

Fig. 3. Cyclic voltammograms of 0.5 mM of [Fe(CN)6]3−/4− in 0.1 M PBS, pH 5.5, containing 0.1 M KCl at a scan rate of 50 mV s−1 obtained for electrodes at different assembly steps: flat gold (a), NPG (b) and aptamer functionalized NPG electrode before (c) and after immobilization with DHBA redox probe.

Fig. 3