Figure 2.

Secondary structure characterization. A) CD spectra of H−gcFF−OH (red) and H−gcFF−NH₂ (green) at 5.0 mg ⋅ mL⁻¹; B) CD spectra of H−FFgc−OH (blue) and H−FFgc−NH₂ (orange) at 5.0 mg ⋅ mL⁻¹. C) FTIR spectra of all PNA‐FF derivatives between 4000–400 cm⁻¹. D) Absorbance deconvolution of the FTIR spectra in the amide I region (1700–1600 cm⁻¹) shifted for a better visualization and comparison. E) UV/Vis spectra of PNA‐FF derivatives (2.5 mg ⋅ mL⁻¹) co‐incubated with CR dye. E) Fluorescence spectra of ThT co‐incubated with each PNA‐peptide derivative after the subtraction of both PNA‐peptide and dye alone.