文献类型：期刊文献

英文题名：Printed circuit board integrated wearable ion-selective electrode with potential treatment for highly repeatable sweat monitoring

作者：Liu, Huixin[1,2,3];Gu, Zhen[5];Zhao, Qing[1,2,3];Li, Shuai[1,2,3];Ding, Xi[1,2,3];Xiao, Xinxin[4];Xiu, Guangli[1,2,3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai Environm Protect Key Lab Environm Stand, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[4]Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark;[5]East China Univ Sci & Technol, Dept Automat, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：355

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20215211383885);WOS:【SCI-EXPANDED(收录号:WOS:000829935900001)】；

基金：The authors thank Prof. Yitao Long and Dr. Simin Lu for the assistance during research process. This work was supported by Shanghai Science and Technology Commission (20DZ1204006, 19DZ1205001). Z.G. acknowledges a National Key Research and Development Program of China (grant No. 2021YFC2101101). X.X. acknowledges a Villum Experiment (grant No. 35844).

语种：英文

外文关键词：Wearable sensor; Printed circuit board; Solid contact ion-selective electrodes; Conducting polymer; Electrochemistry

摘要：Wearable chemical sensors have recently received great attention, especially on monitoring ion concentration in sweat. However, challenges still remain, such as the nonnegligible potential deviation of the ion-selective electrode (ISE) based potentiometric sensor after multi-use. Herein, we propose an easily prepared and highly integrated wearable solid contact-ISE (SC-ISE), allowing multiple measurements with repeatable open circuit potential (OCP), which is achieved by applying a positive potential on the working electrode. It's believed that the positive potential alters the oxidation-reduction state of the conducting polymer. The integrated SC-ISE sensor is fabricated on a printed circuit board (PCB) substrate, eliminating external hardware. Preparation of the sensor electrode adopts a standard route, i.e. employing the electroless nickel immersion gold (ENIG) process for plating gold layers. Dual working electrodes have been designed to measure either sodium or potassium ion. This wearable platform has been validated through on-body tests by monitoring ion levels in the real sweat.