Superglue – alternative to surgical stitches and staples

Jianyu Li, an assistant professor at McGill University in Montreal developed a new surgical adhesive that is strong, nontoxic, flexible, and biocompatible and binds strongly to body tissues even when they’re wet. 

Many of the adhesive products used today are toxic to cells, inflexible when they dry, and do not bind strongly to biological tissue.

Li was inspired by a slug The Dusky Arion (Arion subfuscus). When threatened, the slug secretes a special type of mucus that glues it in place and makes it difficult for a predator to pry it off its surface.

Arion-subfuscus

The gel was used to bond implants in rats for two weeks and to seal a hole in a pig heart that was put through thousands of cycles of stretching.