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. Author manuscript; available in PMC: 2021 Jan 24.
Published in final edited form as: J Neural Eng. 2020 Jan 24;17(1):016036. doi: 10.1088/1741-2552/ab581a

Figure 6. Device electroplating and noise characterization.

Figure 6.

(A) Scanning electron microscope image of an uncoated (left) and gold-plated (right) electrode.

(B) Impedance of 128 electrodes before and after electroplating, measured at 1 kHz in saline (paired t-test, p < 0.0001).

(C) Root mean square noise of 128 electrodes before and after electroplating, measured in saline after applying a 0.3 – 7 kHz bandpass filter (paired t-test, p < 0.0001). Values in B and C represent mean ± SD.