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Sticky job: Excellent underwater adhesion with remarkable mechanical and chemical reversibility has been demonstrated with a supramolecular velcro using host–guest chemistry and multivalent interactions (see scheme). Silicon surfaces (blue) functionalized with cucurbit7uril (CB7) hosts and aminomethylferrocene (Fc) guests adhere under water because of their extraordinarily high affinity.
Ahn et al. (Mon,) studied this question.