Restoration of endogenous electric fields with a glucose-powered symbiotic bioabsorbable bandage for diabetic wound healing.

Endogenous electric fields (EFs) are essential for tissue regeneration but are diminished under hyperglycemia conditions, thereby impeding diabetic wound healing. Here, we report a biodegradable, glucose-powered electronic fabric bandage (GEB) that restores wound-edge electrical fields and enables closed-loop wound healing. To avoid compromising clinical applicability, we integrated all components into a soft, lightweight, and breathable bandage design to replace the traditional bulky electrical stimulator design. We also show the universal glucose-powered electricity generation and therapeutic functions of the electronic bandage across species and organs in diabetic wound models. In diabetic mouse wounds, porcine skin defects, and intestinal injury, the bandage uses endogenous glucose for power generation, thereby reducing local glucose levels and restoring the endogenous EF that guided cell migration, reprogrammed macrophage polarization, and promoted angiogenesis, to accelerate wound healing. These findings should establish an "endogenous glucose-powered symbiotic bioelectronics" paradigm for next-generation bioelectronic medicine.