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. 2023 May 23;14:1124245. doi: 10.3389/fneur.2023.1124245

Figure 1.

Figure 1

Characterization of polypyrrole-Iodine (PPy/I) synthesized by plasma. Fourier Transform Infrared (FT-IR) transmittance spectrum (A); Scanning electron microscopy (SEM) photomicrograph of PPy/I particles obtained after grinding a thin film (B); SEM photomicrograph of PPy/I thin film before grinding (C); Elemental atomic % of carbon, oxygen and nitrogen in PPy/I (D).