University of Sydney researchers develop biodegradable nanobone for bone regeneration

Researchers at the University of Sydney have developed a biodegradable “nanobone” material designed to help the body regenerate bone tissue by activating its own natural healing signals. Published in the journal ACS Nano, the study presents a potential alternative to painful bone graft procedures.

Unlike traditional methods that introduce external growth factors, this material uses mesoporous calcium-aluminosilicate nanoparticles to trigger the body’s existing biological signals. Specifically, it facilitates the activation of latent TGF-β1, a factor that attracts stem cells to the injury site and encourages them to transform into bone-producing cells. In preclinical models, the material produced approximately 80% more new bone than other materials after eight weeks and activated TGF-β1 at levels ten times higher than conventional methods.

The technology is currently in the preclinical phase. It holds particular promise for children with cleft lip and palate, who often face invasive surgeries and long waiting periods for jawbone reconstruction. As the material biodegrades, it is intended to be gradually replaced by the patient’s own natural tissue.