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. Author manuscript; available in PMC: 2021 Jul 15.
Published in final edited form as: Anal Chem. 2020 Apr 16;92(9):6334–6340. doi: 10.1021/acs.analchem.9b05194

Figure 2.

Figure 2.

Ag/AgCl-wire reference electrodes undergo surface-level changes during prolonged brain implantation. (A) 400× and (B) 2000× representative scanning electron micrographs of Ag/AgCl-wire reference electrodes before implantation and (C) 400× and (D) 2000× 3 weeks post-implantation.