Abstract
AbstractPeripheral nerve injury significantly impairs sensory and motor functions, leading to diminished quality of life. Traditional treatments like nerve suturing and grafting often have limited efficacy and require long recovery. Recent advances in electrical stimulation technology show promise in speeding nerve repair, but current devices usually require lengthy surgeries, risking secondary nerve injury from prolonged nerve exposure during electrode installation and removal. This study introduces a portable, absorbable electrical stimulation system (PAESS) that integrates a battery‐free, wirelessly powered flexible printed circuit board chip with a biodegradable organic electrode. PAESS enables multiple self‐administered nerve stimulation without the need for electrode installation or removal. Using animal models, its electrical performance, biocompatibility, and efficacy in nerve repair are evaluated. The findings indicate a considerable enhancement in the recovery of nerve function, as demonstrated by improved electrophysiological measurements, decreased muscle atrophy, and positive histological results. Transcriptomic analysis indicates that the PAESS initiates the nerve regeneration process. This research presents an innovative platform for electrical stimulation, laying the groundwork for exploring electrical parameters and their mechanisms. This may deepen understanding of nerve regeneration and foster innovation in therapies.
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