Figure 3: IMS and conformer-selected infrared spectroscopy of YVEALL oligomers. As shown in Supplementary Fig. 19, larger YVEALL oligomers (7/3 and 9/4) show considerable β-sheet features ...

Comparison of the mixed spectra with the two control spectra reveals ... remains appreciably negative or is unchanged, then the β-sheet is intact at this site. If the frequency shift is lost ...