Figure 2.

(Top) ¹H, ¹H-2D NOESY spectrum of lactose-modified chitosan in D₂O. Unambiguous meaningful NOEs are shown in blue. Empty regions indicating the absence of NOE between two protons are shown in dark gray; the NOE peak used for distance calibration connecting H12 geminal protons (distinguished with letters a and b) are shown in red. Other diagonal peaks are shown in magenta. (Bottom) NOE network regarding the lactitol moiety is shown on the polysaccharide structure. Reprinted with permission from Phys. Chem. B 2013, 117, 43, 13578–13587. Copyright (2013) American Chemical Society.