School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, PR China.
Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing 100083, PR China.
Nano Lett. 2021 Oct 27;21(20):8880-8887. doi: 10.1021/acs.nanolett.1c03426. Epub 2021 Oct 14.
Functionalized textiles capable of biofluid administration are favorable for enhancing the wet-thermal comfort of the wearer and healthcare performance. Herein, inspired by the Janus wettability of lotus leaf, we propose a skin-comfortable Janus electronic textile (e-textile) based on natural silk materials for managing and analysis of biofluid. Silk materials are chosen and modified as both a textile substrate and a sensing electrode due to its natural biocompatibility. The unidirectional biofluid behavior of such Janus silk substrate facilitates a comfortable skin microenvironment, including weakening the undesired wet adhesion (∼0 mN cm) and avoiding excessive heat or cold on the epidermis. We noninvasively analyze multiple targets of human sweat with less required liquid volume (∼5 μL) and a faster (2-3 min) response time based on the silk-based yarn electrode woven into the hydrophilic side of Janus silk. This work bridges the gap between physiological comfort and sensing technology using biomass-derived elements, presenting a new type of smart textiles for wet-thermal management and health monitoring.
具有生物流体管理功能的功能化纺织品有利于提高穿着者的湿-热舒适性和医疗保健性能。受荷叶的双面润湿性启发，我们提出了一种基于天然丝材料的舒适型 Janus 电子纺织品（e-textile），用于管理和分析生物流体。由于其天然的生物相容性，丝材料被选择并修饰为纺织品基底和传感电极。这种 Janus 丝基底的单向生物流体行为有助于营造舒适的皮肤微环境，包括减弱不希望的湿粘附（∼0 mN cm）和避免表皮过热或过冷。我们基于编织到 Janus 丝亲水侧的丝基纱线电极，以较少的所需液体量（∼5 μL）和更快的（2-3 分钟）响应时间，无创分析人体汗液的多个目标。这项工作利用生物量衍生元素弥合了生理舒适性和传感技术之间的差距，为湿-热管理和健康监测提供了一种新型智能纺织品。
