Figure 9
From: A softening laminar electrode for recording single unit activity from the rat hippocampus

The equivalent circuit of Randle’s model for coated electrodes (A), where Rs is the serial resistance, RCT in charge-transfer resistance, CPEDL is the constant phase element of double layer, W0 is the Warburg element. Average (4–4 recording sites on 2 individual arrays) fitted model parameters right after plating, after the 1st and 180th cycles are shown in the inset table (B). Nyquist plot is presented to show complex impedance right after plating (blue circles and line) and after 9 days of soaking with (green circles and line) and without (yellow circles and line) daily CV (C).