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. Author manuscript; available in PMC: 2021 Dec 20.
Published in final edited form as: J Neural Eng. 2018 Dec 5;16(2):026009. doi: 10.1088/1741-2552/aaf66b

Figure 1.

Figure 1.

(a) Low power micrograph of a HL8 research electrode array illustrating the 8 Pt electrodes (E1-E8) on the array. All Pt contact areas on each array were identical. The white band (M) is used as a surgical guide to ensure a uniform insertion depth for each electrode array. Scale bar = 1 mm. (b) – (d) Scanning electron micrographs illustrating the three Pt contact areas used in this study. (b) 0.2 mm2; (c) 0.075 mm2; (d) 0.05 mm2. S = PDMS silicone. Scale bar = 100 μm.