自闭合,无电池的 triboelectric 伤口愈合带,具有强大的湿粘合力
Xiangchun Meng1,2, Xiao Xiao1,2, Sera Jeon1,2
1Center for Human-oriented Triboelectric Energy Harvesting, Yonsei University, Seoul, Republic of Korea.
Nature communications
|August 5, 2025
概括
一种新的无伤口关闭装置使用形状记忆材料和电刺激来加速愈合. 与传统方法相比,这种无电池的方法显著减少了痕并改善了组织再生.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 医疗器械 医疗器械
背景情况:
- 传统的伤口关闭方法,如和紧固件,可以导致感染,延迟愈合和组织损伤,特别是在脆弱的组织中.
- 需要先进的伤口关闭技术,尽量减少侵入性,促进最佳组织修复.
研究的目的:
- 开发和评估一种新的无,无电池的粘合条 (SBF条) 以提高伤口愈合.
- 整合形状记忆辅助的机械近似与阻抗匹配的电刺激,以改善组织修复.
主要方法:
- 该SBF带采用通过温和热激活的形状记忆聚合物 (SMP) 和强大的湿粘接口,用于快速,均的伤口关闭.
- 一个集成的超声驱动的 triboelectric 系统提供电刺激,优化皮肤阻抗 (~50 kΩ),以促进细胞活动.
- 用有限元模拟来分析机械应变再分配,并预测痕减少.
主要成果:
- 在生体内对大鼠进行的研究显示,与合关闭相比,痕区域减少了61.7%.
- 该SBF条显示了表皮再生的改善,增强了原沉积和血管生成的增加.
- 该设备实现了最佳的皮肤阻抗匹配,并产生了显著的电场来刺激细胞过程.
结论:
- 开发的SBF带为先进的伤口治疗提供了一种协同作用的机械和电气方法.
- 这种无电池,可扩展的平台减少了对外部电源和一次性组件的依赖.
- 该技术可以实现精确引导的愈合,减少痕和改善再生结果.
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