在可穿戴电子产品上沉积抗菌聚烯-银纳米复合物的冷大气等离子体,以延长性能
Ulisses Heredia-Rivera1,2, Akshay Krishnakumar2,3, Venkat Kasi1,2
1School of Materials Engineering, Purdue University West Lafayette IN 47907 USA rrahimi@purdue.edu.
Journal of materials chemistry. C
|August 12, 2024
概括
研究人员开发了一种使用冷大气等离子体制造耐用,抗菌导电涂层的新方法,用于电子织品. 这项创新延长了可穿戴传感器的寿命,提高了医疗和军事应用中的性能.
科学领域:
- 材料科学与工程 材料科学与工程
- 生物医学工程 生物医学工程
- 织科学 织科学
背景情况:
- 可穿戴电子产品和电子织品对于生理监测至关重要,但皮肤微生物的生物污染限制了电极寿命.
- 现有的抗菌导电纳米复合材料很难有效地应用于3D织结构.
研究的目的:
- 开发一种可扩展和高效的方法,用于在电子织品上制造强大的,抗菌导电的纳米复合材料涂层.
- 通过防止生物污染,提高可穿戴电子传感器的耐用性和性能.
主要方法:
- 利用基于冷大气等离子体 (CAP) 的现场聚合,将聚烯-银 (PPy-Ag) 纳米复合材料直接沉积在导电织品上.
- 设计了一个定制的CAP沉积系统,具有机器人控制,用于精确和合规的涂层.
- 使用电子显微镜和光谱技术 (EDX,FTIR,Raman,XRD) 描述了PPy-Ag涂层.
主要成果:
- 实现了PPy-Ag纳米复合材料在纤维织结构上的均,合规的沉积,而不会损害灵活性或透气性.
- 鉴定出一种最佳的PPy-Ag成分 (96 wt% pyrrole,4 wt% AgNO3),表现出稳定的抗菌特性和生物相容性.
- 与标准凝电极 (一天) 相比,用于心电图 (ECG) 监测的PPy-Ag涂层干电极的长时间 (10天) 性能证明,信号噪声降低.
结论:
- 基于CAP的现场聚合提供了一种可扩展和有效的方法,用于使用抗菌导电涂层来功能化电子织品.
- 开发的PPy-Ag纳米复合材料涂层显著提高可穿戴传感器的运行寿命和可靠性.
- 这项技术为日常服装中集成的先进传感器铺平了道路,用于长期的生理监测.
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