Gel-Based Glue Fastens Snails to Wet Surfaces, Model for Surgical Adhesive
Friday, May 1, 2009 - 15:28
in Physics & Chemistry
A species of slug (Arion subfuscus) produces a defensive gel it can chemically convert into a remarkably strong glue. Similar gel-based glues attach some snails firmly onto slippery rocks; tools are needed to pry them off. The tenacity of these glues on wet surfaces is difficult to match with artificial adhesives. Following up on their original research identifying the key characteristics controlling this transition from a water-based gel into a powerful yet flexible adhesive, researchers at Ithaca College have shed new light on the nature of the adhesive mechanism.