Bio-inspired superglue: adhesive force from the body’s own mucus

Researchers have developed a new type of adhesive based on natural mucus proteins. This bio-based superglue could be used in medical technology in the future to prevent infections and securely join materials.

Inspired by mussels: scientists use biological adhesive mechanisms to develop an innovative, waterproof superglue.Source: GonzaKnox - Pixabay

An international research team has developed a bio-inspired adhesive that combines the adhesive mechanisms of marine mussels with natural mucus proteins. The result is a highly effective, waterproof superglue that could potentially be used in medical technology.

Mussels are known for their ability to anchor themselves firmly to rocks or ship hulls – even underwater. Scientists at the Massachusetts Institute of Technology (MIT) and the Freie Universit？t Berlin took up this principle and combined sticky mussel polymers with mucins, the protective glycoproteins of human mucus. The result is a strongly adhesive gel that is easy to apply and forms a tough adhesive layer after hardening.

Versatile application possibilities in medical technology

The bio-based adhesive is characterised not only by its high adhesive strength, but also by its antimicrobial properties. This means that it could be used, for example, to coat medical implants to prevent infections. Furthermore, it is conceivable that the adhesive could be developed as an injectable or sprayable substance that solidifies in situ.

In addition to medical applications, the researchers see further possibilities, for example as an environmentally friendly substitute for synthetic adhesives in industry. Further development with other natural polymers such as keratin is also currently being investigated. The research shows how natural materials can be used for highly specialised applications. Particularly in the field of bio-based adhesives, this approach could offer a sustainable alternative to conventional products.

Source: MIT News, 2024