Biomedicine

Inspired by mussels: printable adhesives for tissues and bones

Research News /

Titanium hip implants do not last forever — they gradually loosen, sooner or later losing their hold on the bone as it recedes over time. Researchers at the Fraunhofer Institute for Applied Polymer Research IAP have been working alongside the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB and the Fraunhofer USA Center for Manufacturing Innovation CMI to develop a tissue adhesive that can help avoid early replacement of prostheses in the future. The biomimetic, antimicrobial material is applied to the titanium surface of the implant, which then connects with the bone and naturally adheres to the bone. The key here is that the tissue adhesive, which emulates the adhesive property of mussels, can be printed — even onto curves and uneven surfaces.