Jiang Yu, Cui Shengjun, Xia Tong, Sun Tongrui, Tan Haixin, Yu Fei, Su Yan, Wu Suli, Wang Dejun, Zhu Nan
Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China.
Key Laboratory of Intelligent Control and Optimization for Industrial Equipment, Ministry of Education, School of Control Science and Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China.
Anal Chem. 2020 Nov 3;92(21):14536-14541. doi: 10.1021/acs.analchem.0c02723. Epub 2020 Oct 19.
The wearable and integrated sensing platform is a promising choice for developing real-time analytic electronics with clear advantages but still poses challenges, such as the realization of high precision, low limit of detection (LOD), moderate mechanical capacity, integration, and miniaturization. In this work, a simple printed wearable smartsensor has been fabricated with the aid of electrochemical plating methods with bismuth (Bi) films. The excellent sensing behaviors, including linear relationship, selectivity, stability, repeatability, and the LOD at ppb levels, have been obtained by this smartsensor. Additionally, the highly flexible textile-based sensor exhibits potential application on the substrates of daily cloth, sports T-shirt, and sports wristbands, and it maintains good stability under repeated deformations of washing and twisting. Importantly, integrated with printed circuit board, single chip micyoco, and Bluetooth modules, a smartsensing platform is successfully acquired for real-time detection of heavy metals (e.g., Zn, Cd, Pb, etc.). Finally, actual samples of human sweat, seawater, cosmetics, and drinking water have been remotely successfully demonstrated for detection by this smartsensor, enabling a great promise for fast on-site screening of samples in practical application.
可穿戴集成传感平台是开发具有明显优势的实时分析电子设备的一个有前途的选择，但仍面临挑战，如实现高精度、低检测限（LOD）、适度的机械性能、集成化和小型化。在这项工作中，借助电化学镀铋（Bi）膜的方法制备了一种简单的印刷可穿戴智能传感器。该智能传感器具有优异的传感性能，包括线性关系、选择性、稳定性、重复性以及达到ppb级别的检测限。此外，这种高度灵活的基于纺织品的传感器在日常衣物、运动T恤和运动手环等基底上具有潜在应用，并且在洗涤和扭转等反复变形下仍保持良好的稳定性。重要的是，通过与印刷电路板、单片机和蓝牙模块集成，成功获得了一个用于实时检测重金属（如锌、镉、铅等）的智能传感平台。最后，该智能传感器已成功远程演示了对人体汗液、海水、化妆品和饮用水等实际样品的检测，为实际应用中的样品快速现场筛查带来了巨大希望。
