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. Author manuscript; available in PMC: 2018 Mar 20.
Published in final edited form as: J Phys Chem B. 2015 Oct 16;119(44):14065–14075. doi: 10.1021/acs.jpcb.5b07706

Figure 4.

Figure 4

Normalized slices through the diagonal of 2D IR spectra of 1 mM (cyan), 1.5 mM (green), 2.5 mM (orange), and 5 mM (purple) hIAPP. The frequency of the β-sheet peak decreases with increasing transition dipole strength. In addition, the diagonal line widths narrow as the transition dipole strength increases.