Intelligence-responsive wettability switch coating on magnesium implants for treating osteoporotic fracture (opens in new tab)

Osteoporotic fracture healing is frequently complicated by elevated levels of reactive oxygen species and disrupted bone homeostasis. Biodegradable magnesium alloys are promising orthopedic implants, but rapid degradation in oxidative, acidic osteoporotic microenvironments limits their clinical application. In this study, we develop a reactive oxygen species-responsive hydrogel coating of tannic acid and gelatin methacryloyl on magnesium implants via a metal-phenolic network. We show that thi...