Light-activated nanotech could accelerate wound healing by killing bacteria
Researchers are developing light-activated nanomaterials that convert light into heat or reactive chemicals to kill bacteria in wounds, potentially speeding healing. In mouse and pig studies, these therapies reduced infections by up to ~99% and promoted faster wound closure, including approaches like a lysozyme-containing gel activated by near-infrared light and magnesium-enhanced immune response, as well as gold–graphene oxide nanoparticles that generate toxic reactive oxygen species under blue light. While promising for chronic wounds and device-related infections, the techniques still require safety testing and cost reduction before clinical use.
