A Self‐Powered Bioelectronic Suture via Hybrid Laser Treatment

作者：Yuhong Xu, Tianyu Li, Hao Zhou, Yuyao Lu, Yuyang Yuan, Binhan Zhao, Yifan Wang, Huayong Yang, Xiujun Cai, Kewang Nan, Kaichen Xu · 发表于：Advanced Healthcare Materials · 年份：2025 · DOI：10.1002/adhm.202501329 · 被引用次数：17 · 研究领域：Laser Applications in Dentistry and Medicine、Advanced Sensor and Energy Harvesting Materials、Tactile and Sensory Interactions

Appropriate suture tension is crucial for effective wound healing, as improper tension may lead to wound dehiscence or ischemia. Advances in bioelectronic sutures enable monitoring and therapy, but reliance on external power or complex circuits limits their use in long-term and minimally invasive applications. Herein, a self-powered bioelectronic suture (B-suture) is reported that enables real-time tension monitoring during suturing. The B-suture integrates a conductive composite within a capillary structure. Hybrid laser processing, combining continuous wave laser-induced phase separation and femtosecond laser-engraved microstructures, greatly enhances electro-mechanical properties and triboelectric sensing performance. The triboelectric nanogenerator-based principle enables tension detection in the 0-2 N range. In vitro and in vivo evaluations demonstrate biocompatibility and precise monitoring of suturing tightness. By providing real-time quantitative feedback, the proposed B-suture affords to improve wound closure quality, reduce postoperative complications, and advance bioelectronic applications in surgical practice.