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. 2020 Jan 9;10:2963. doi: 10.3389/fmicb.2019.02963

FIGURE 2.

FIGURE 2

ATR-FTIR spectra of PET samples (A) before radiofrequency cold plasma treatment, (B) after plasma treatment, and (C) after MTP1 bio-conjugation. (D) The table reporting the main absorption peaks observed in ATR-FTIR spectra of PET samples.