Fig. 5: Simulated neural signal recording experiments.
From: Conformal bumped electrode web for chronic ECoG recordings in swine
a Schematic diagram and b physical photograph of the simulated neural recording device, which is based on photovoltaic (PV) signals generated by laser irradiation of a silicon wafer. c Wide-band and d high-pass (250 Hz) PV signals recorded from three electrode types—stretchable bumped gold electrode, PEDOT-modified non-stretchable planar electrode, and PEDOT-modified stretchable bumped electrode—under 100 laser irradiation pulses (0.25 A, 10 ms, 10 Hz) in PBS/agar solution. e Corresponding single waveform extracted from the high-pass PV signals in (d). f Calculated signal-to-noise ratio (SNR) of the PV signals for the three aforementioned electrode types, the results are averaged from three independent samples (n = 3)
