可植入的抗生物污染生物超级电容器具有高能量性能
Taegyu Park1, Dong Yeop Lee1, Bum Ju Ahn2
1Department of Electronic Engineering, College of Engineering, Hanyang University, Seoul, 04763, South Korea.
Biosensors & bioelectronics
|October 20, 2023
概括
这项研究介绍了一种灵活的聚多巴胺 (PDA) 透的碳纳米管 (CNT) 线超级电容器,可以克服生物,并增强可植入电子产品的生物流体中的能量储存.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 生物流体超级电容器对可植入电子产品来说是有前途的,但在生物电解质和生物污染中储存的能量低,面临着挑战.
- 由于生物污染,现有的超级电容器的性能下降,限制了它们在生物环境中的实际应用.
研究的目的:
- 开发一种高性能,灵活的生物流体超级电容器,具有增强的能量密度和可植入器件的抗生物污染特性.
- 为了解决在生物流体内运行的超级电容器中储能和生物污染的局限性.
主要方法:
- 一个灵活的聚多巴胺 (PDA) 透的碳纳米管 (CNT) 线 (PDA/CNT) 超级电容器的制造.
- 将PDA/CNT电极封装在水凝屏障圆形针织中,以防止生物污染.
- 在体外和体内测试超级电容器的储能性能,稳定性和抗生物污染性.
主要成果:
- 与生物流体中的原始CNT相比,PDA/CNT超级电容器实现了250倍的能量密度增加.
- 证明了高面积电容 (503.91 mF cm-2),能量密度 (274 μWh/cm2) 和功率密度 (25.52 mW cm-2).
- 经过1万个循环和曲试验,表现出极好的稳定性,容量损失微不足道,并在大鼠模型中在没有生物污染的情况下在体内21天内保持稳定的性能.
结论:
- 在生物流体应用中,PDA/CNT超级电容器为高性能,稳定的能量存储提供了可行的解决方案.
- 水凝屏障封装有效防止生物污染,确保可植入超级电容器的长期运行完整性.
- 在体内成功证明了发光二极管的能量储存和供电,突出了其生物医学应用的潜力.
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