用于长期生物植入的完全生物相容的热拉动纤维超级电容器
Sungha Jeon1,2, Hyeonyeob Seo2, Yeji Kim2
1Medical Research Center, Seoul National University, Seoul, Republic of Korea.
Nature communications
|September 2, 2025
概括
研究人员开发出一种基于水凝的超级电容纤维,用于植入生物电子设备. 这种生物相容的能量来源为LED操作和光遗传刺激等体内应用提供了稳定,长期的能量.
科学领域:
- 生物电子设备
- 材料科学
- 储能方式
背景情况:
- 植入式生物电子设备的进步需要稳定,生物相容的电源.
- 现有的能源往往缺乏在体内应用所需的长期电化学和机械稳定性.
研究的目的:
- 开发一种机械坚固,生物相容,纤维状的能量储存装置,用于植入生物电子.
- 将所有必要的组件 (电极,电解质,电流收集器,封装) 集成到一个单一的纤维架构中.
主要方法:
- 使用热绘制工艺 (TDP) 制造基于凝的坚固超级电容器 (THBS) 纤维.
- 优化热/机械性能,并结合自愈的能力.
- 在动态,高曲率变形下对电化学性能进行评估.
- 通过体外和体内研究评估长期功能性和生物相容性.
主要成果:
- 在模拟生理运动下,THBS纤维表现出耐用性和高电化学性能.
- 这些纤维保持了机械和电化学稳定性,尽管它们的尺寸很小 (数百微米).
- 在5周内证实了长期的功能性,体内免疫反应最小.
- 在体内成功的演示包括在自由移动的小鼠中启动LED并启用光遗传刺激.
结论:
- THBS纤维代表了先进的可植入生物电子系统的下一代储能解决方案.
- 统一的,强大的纤维架构为体内应用提供了完全生物相容和机械稳定的电源.
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