Figure 10.
2D IR spectroscopy of β-amyloid (Aβ-40) revealed the existence of kinetically trapped water. (a) A pictorial representation of possible locations of water molecules inside Aβ40 fibrils. (b) Enlarged view of the region outlined in part a. The evolution of nodal slopes of specific residues, shown in part c, indicates the presence of water at certain interstrand locations. Adapted with permission from ref 109 (Copyright 2009 National Academy of Sciences.) and ref 103 (Copyright 2011 Elsevier.).