The electrochemical response to Au electrode modification steps towards viral electrochemical immunosensor preparation

The dataset contains the electrochemical measurements (CV/EIS) carried out for the consecutive steps of the Au electrode functionalization, in separate subfolders, as described. The cyclic voltammetry (CV) was conducted using a Palmsens 4 potentiostat/galvanostat system (Methrom, Autolab, Netherlands) in the standard three-electrode configuration, with the Pt mesh was used as a counter electrode, and Ag/AgCl/0.1M KCl as a reference electrode. In the case of the EIS, the frequency ranged from 10 kHz to 0.2 Hz for Au electrode with 40 points. The amplitude of the alternating current (AC) signal was 10 mV. Each potential was held constant for 5 s before each measurement to obtain steady-state conditions. All electrochemical tests were carried out in 5 mM K3[Fe(CN)6]/K4[Fe(CN)6]/in 0.01 M PBS that was previously deaerated. The voltammetric behavior of the modified gold electrode in the presence of a simple redox system, K4[Fe(CN)6] in the supporting electrolyte of 0.1 M KCl, was compared with that of the bare electrode.