Figure 2: Characterization of βCD–bpy gel and supramolecular cross-linking in the gel.
From: A metal–ion-responsive adhesive material via switching of molecular recognition properties
(a) FG-MAS NMR of βCD–bpy gel swollen with DMSO-d6. (b–e) Supramolecular cross-linking in βCD–bpy gel. (b) Chemical structures of βCD gel, bpy gel and AAm gel as reference gels for βCD–bpy gel. (c) Swelling ratio Q of gels immersed in DMSO and H2O, respectively. Here, Q=(the weight of a swollen gel)/(the weight of the corresponding dried gel). (d,e) Length changes of gels by immersing in aqueous solutions of competitive host (βCD) and guest (AdCANa) molecules (10 mM) to disrupt supramolecular cross-linking (error bars, s.e.m. (n=4)).
