Magnetizing Cellulose Fibers with CoFeO Nanoparticles for Smart Wound Dressing for Healing Monitoring Capability.

In an attempt to address issues accompanying the unnecessary change of wound dressings of patients in traditional wound care management, we are developing smart wound dressing material, based on magnetic nanosensors, for wireless monitoring of the wound healing process. The technology is based on magnetizing the cellulose component of the dressing and tuning the resulting magnetic cellulose to respond to temperature changes of the wound. Here, we report the development of the magnetic cellulose through grafting of magnetic CoFeO nanoparticles (CoFeO NPs) onto cellulose fibers using a layer-by-layer method.