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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 10.

Figure 10

LA-LMI4, 639 days. (a) Typical electrode tip with intact platinum and thick encapsulation, scale 10 μm, 3 kV. (b) Detail of parylene interface where a longitudinal crack is seen but delamination cannot be assessed because the interface is obscured by fibrosis, scale 1 μm, 3 kV. (c) Another electrode with intact platinum and clear delamination, scale 10 μm, 3 kV. (d) Detail showing cracked parylene and delamination with tissue invasion, scale 2 μm, 3 kV. (e) Silicone delaminating from parylene at the edge of the array, scale 500 μm, 8 kV. (f) Detail of silicone delamination and thin film of fibrosis on the base, scale 50 μm, 8 kV. (g) Elastic collagen fibers attached to the shaft of an electrode, scale 10 μm, 3 kV. (h) Detail of collagen fiber showing individual collagen fibrils, scale 2 μm, 3 kV. (i) Inter-electrode fibrosis peeling parylene off the electrode shaft, scale 100 μm, 3 kV. (j) Detail of collagen fibers enveloping a segment of parylene, pulling it away from the electrode, scale 20 μm, 3 kV.