Fig. 6. (A) DPV curves of the established immunosensor in various concentrations of SNCA (4, 8, 16, 32, 64 and 128 ng mL−1) in plasma sample and (B) calibration curve. (C) Nyquist plots for electrochemical impedance measurements of different concentrations of SNCA with plasma in 0.01 M [Fe(CN)6]3−/4−/KCl solution (n = 4, Sd = 1.97).
