A breathable, biodegradable, antibacterial, and self-powered electronic skin based on all-nanofiber triboelectric nanogenerators
A breathable, biodegradable, antibacterial, and self-powered electronic skin based on all-nanofiber triboelectric nanogenerators
复制标题
基于全纳米纤维摩擦纳米发电机的透气、可生物降解、抗菌、自供电电子皮肤
DOI：
10.1126/sciadv.aba9624
复制
发表时间：
2020-06-01
期刊：
影响因子：
13.6
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Peng, Xiao;Dong, Kai;Wang, Zhong Lin
开发了一种透气、可生物降解、抗菌和自供电的皮肤。通过电子皮肤（e-skins）模仿人类感知的综合功能对于人机交互和人工智能的发展非常有趣。一些具有高敏感性和稳定性的电子皮肤被开发出来;然而，很少有人关注它们的舒适性，环境友好性和抗菌活性。在这里，我们报告了一个透气，可生物降解，和抗菌的电子皮肤的基础上，所有的摩擦电纳米发电机，这是通过包裹银纳米线（银NW）之间的聚乳酸-共-乙醇酸（PLGA）和聚乙烯醇（PVA）。电子皮肤具有微米到纳米的分级多孔结构，具有用于接触带电的高比表面积和用于热湿传递的众多毛细管通道。通过调节银纳米丝的浓度以及PVA和PLGA的选择，可以分别调节电子皮肤的抗菌和生物降解能力。我们的电子皮肤可以实现实时和自供电监测全身生理信号和关节运动。这项工作提供了一个前所未有的多功能电子皮肤具有良好的实用性的策略。
A breathable, biodegradable, antibacterial, and self-powered skin is developed. Mimicking the comprehensive functions of human sensing via electronic skins (e-skins) is highly interesting for the development of human-machine interactions and artificial intelligences. Some e-skins with high sensitivity and stability were developed; however, little attention is paid to their comfortability, environmental friendliness, and antibacterial activity. Here, we report a breathable, biodegradable, and antibacterial e-skin based on all-nanofiber triboelectric nanogenerators, which is fabricated by sandwiching silver nanowire (Ag NW) between polylactic-co-glycolic acid (PLGA) and polyvinyl alcohol (PVA). With micro-to-nano hierarchical porous structure, the e-skin has high specific surface area for contact electrification and numerous capillary channels for thermal-moisture transfer. Through adjusting the concentration of Ag NW and the selection of PVA and PLGA, the antibacterial and biodegradable capability of e-skins can be tuned, respectively. Our e-skin can achieve real-time and self-powered monitoring of whole-body physiological signal and joint movement. This work provides a previously unexplored strategy for multifunctional e-skins with excellent practicability.