Figure 5 | Scientific Reports

Figure 5

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

Figure 5

(a) CVs for immunosensors (Im) with different 8-OHdG concentrations. (b) Linearity of calibration curve obtained from the anodic peaks of three replicated measurements. R2 = 0.9898; n = 4. (c) 8-OHdG immunosensor (Im) incubated with 8-OHdG standard (5 ng.mL−1) at different times: in black without incubation; in red and green 10 min and 60 min of 8-OHdG incubation. (e) 8-OHdG imunosensor (Im) incubated with urine samples. CV in red is just urine standard; in green and blue urine with addition of 0.3 ng/mL 8-OHdG and 3.0 ng/mL, respectively. 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.

Back to article page