Robots which climb walls as easily as geckos, extremely strong glue, advanced medical tape, cell mechanics - adhesion is everywhere and unlocking its secrets leads to amazing new technology!
Below you'll find a link to what I believe is a great paper on the topic of adhesion (open access). For instance, if you ever wondered how the adhesive force actually depends on the shape of the contact, this paper has the answers!
V. Popov, R. Pohrt, Q. Li -
Strength of adhesive contacts: Influence of contact geometry and material gradients,
Friction 5(3): 308–325 (2017).