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. Author manuscript; available in PMC: 2024 Sep 16.
Published in final edited form as: ACS Nano. 2018 Jun 28;12(7):6612–6619. doi: 10.1021/acsnano.8b01425

Figure 4. PTIR structural comparison of FF and Boc-FF fibrils in D2O.

Figure 4.

Chemical structure and AFM morphology map of a) Boc-FF and b) FF fibrils. c) Comparison of the fibrils average PTIR spectra in the Amide I (green and yellow) and C=O stretching vibration (red) spectral ranges. The + symbols mark the locations of the individually acquired spectra, reported in SI Fig. 2–3. d) Comparison of the second derivatives spectra in the Amide band I region.