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. Author manuscript; available in PMC: 2016 May 3.
Published in final edited form as: J Neural Eng. 2016 Jan 29;13(2):026003. doi: 10.1088/1741-2560/13/2/026003

Figure 9.

Figure 9

GAR-RPMv, 554 days. (a) Side view of a typical electrode with intact platinum, cracked parylene and substantial fibrosis, scale 20 μm. (b) Top view of another typical electrode with intact platinum and thick, uniform fibrous encapsulation, scale 10 μm. (c) An electrode tip with thick encapsulation tissue, scale 3 μm. (d) Detail of cracked platinum tip, scale 200 nm. (e) Delaminating parylene interface, scale 1 μm. (f) Detail of parylene delamination, scale 200 nm. (g) Edge of the array showing silicone elastomer peeling away from parylene, scale 200 μm. (h) Top view of array showing large collagen fibers suspended between electrodes, scale 100 μm. (i) Detail of elastic collagen fiber attached to the shaft of an electrode, scale 3 μm. (j) An electrode shaft showing adherent elastic collagen fiber and abundant cracks in parylene, scale 10 μm. (k) Detail of a full-thickness transverse crack in parylene with tissue invasion, scale 200 nm. All images in this figure were taken at 5 kV.