High-precision flexible sweat self-collection sensor for mental stress evaluation  

作　　者：Chenhao Wang Zhengyu Wang Wei Wei Zhenjie Zhang Anne Ailina Li Guanghao Huang Xian Li Shuzhi Sam Ge Lianqun Zhou Hui Kong 

机构地区：[1]Institute for Future,School of Automation,Shandong Key Laboratory of Industrial Control Technology,Qingdao University,Qingdao,266071,China [2]ETH Zürich,Department of Biosystems Science and Engineering,Bio Engineering Laboratory,Basel,4056,Switzerland [3]The University of Sydney,2006 Sydney,Australia [4]Natl Univ Singapore,Dept Elect&Comp Engn,Singapore,117576,Singapore [5]Suzhou Institute of Biomedical Engineering and Technology,Chinese.Academy of Sciences,Suzhou,215163,China

出　　处：《npj Flexible Electronics》2024年第1期417-426,共10页npj-柔性电子(英文)

基　　金：supported by the Natural Science Foundation of Shandong Province(No.ZR2022QF120);Qingdao Postdoctoral Fund(No.QDBSH20230101005);Shandong Province Youth Innovation and Technology Support Plan for Higher Education Institutions(No.2023KJ362).

摘　　要：As a stress hormone existing in the human body,cortisol can reflect the psychological stress and health status in daily life,and is a potential biomarker of the body’s stress response.To effectively collect sweat and accurately identify the target,this paper reports a flexible wearable cortisol detection device with outstanding reliability and sensitivity.Molecular imprinted polymer(MIP)ensures cortisol specificity.And carbon nanotubes(CNT)on electrodes increase sensitivity,expanding the detection range to 10^(−3) to 10^(4) nM,with sensitivity at 189.2 nA/lg(nM).In addition,porous chitosan hydrogel(PCSH)collects sweat effectively,its adhesive properties and 80%swelling rate offer a low-cost alternative to microfluidics.Flexible printed circuit board(FPCB)and serpentine electrode(SE)ensure device durability.This non-invasive,highly sensitive device offers a novel method for mental stress monitoring and clinical diagnosis,advancing human physiological state monitoring.

关 键 词：stress DURABILITY SWELLING 

分 类 号：TB3[一般工业技术—材料科学与工程]