Fig. 3. (a) Bode plots of a clean gold electrode (black square) and the same electrode after peptide adsorption overnight (red circle). Inset: the difference in the real impedance (Z′) between the peptide coated electrode and the clean gold electrode (ΔZ′). (b) Adsorption of HDGF 160–174 onto a clean gold electrode. Relative surface coverage (θ) was plotted against time (■). The curve was fit to a second order reaction kinetic equation (red line).
