Fig. 10
From: Water-mediated NOE: a promising tool for interrogating interfacial clay–xenobiotic interactions
An epitope map derived from the changes in the intensity of nicotine (a), imazapyr (b) and diflufenzopyr (c) via waterLOGSY in the presence and absence of clay. The diameter of the circles represents the relative strength of interaction at that position in the structure. The largest circle (i.e. strongest interaction) is normalized to 100%, and all other positions set relative to this (see scale on right). Most of the changes take place in the aromatic regions or in the vicinity of the basic moiety of the molecules. The interactions at the methyl positions are over-emphasized as discussed in the main text