Figure 3 | Scientific Reports

Figure 3

From: Controlling parameters and characteristics of electrochemical biosensors for enhanced detection of 8-hydroxy-2′-deoxyguanosine

Figure 3

(a) SEM image of the ZnO NRs-based sensor board. (b) CVs of three different ZnO NR-based sensor boards (blue, red and green). (c) SEM image of the ZnO NRs/GO sheets composite-based sensor board. Red arrow indicates the GO sheets. (d) CVs of three different ZnO NRs/GO sheets composite-based sensor boards (blue, red and green). CVs in black in b and d are the calibration curves of the bare-sensor boards. All CVs were performed in the presence of K3[Fe(CN)6]/K4[Fe(CN)6] (10 mM) in NaNO3 (0.5 mol.L−1), with a scan rate of 100 mV.s−1.

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