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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: J Neural Eng. 2016 Oct 5;13(6):066002. doi: 10.1088/1741-2560/13/6/066002

Figure 9. SEM images of chronically implanted carbon fibers.

Figure 9

(a) & (b) SEM images of chronically implanted carbon fibers that may be experiencing parylene-c delamination. (c) & (d) SEM images of chronically implanted carbon fiber with a loss of surface roughness at the electrode tip indicating a loss of PEDOT in the center, the attachment of a thin adherence layer, or a combination of both.