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. 2019 Nov 29;7(12):630. doi: 10.3390/microorganisms7120630

Figure 3.

Figure 3

(A) Picture of the electrode surface, (B) image of the surface obtained with optic microscope, and (C) electrode construction. Filter paper was coated with seven layers of carbon nanotube paint and a topmost layer of titanium was added by evaporation. The diameter of the electrode, as shown in panel C, was 210 mm.