A wearable electrochemical sensor based on ?-CD functionalized graphene for pH and potassium ion analysis in sweat

被引：32

作者：

Cui, Xiaoqing ^{[1
]}

Bao, Yu ^{[1
]}

Han, Tingting ^{[1
]}

Liu, Zhenbang ^{[1
]}

Ma, Yingming ^{[1
]}

Sun, Zhonghui ^{[1
]}

机构：

[1] Guangzhou Univ, Sch Civil Engn, Sch Chem & Chem Engn, Ctr Adv Analyt Sci, Guangzhou, Peoples R China

来源：

TALANTA | 2022年 / 245卷

基金：

中国国家自然科学基金;

关键词：

Wearable electrochemical sensor; Sweat analysis; pH and K plus; Printing technology; -CD functionalized Graphene; SELECTIVE ELECTRODES;

D O I：

10.1016/j.talanta.2022.123481

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Here, we developed a wearable electrochemical sensor for pH and K+ monitoring in sweat. The sensor was composed of flexible reference electrode, pH response electrode and K+ selective electrode, which were prepared through printing beta-CD functionalized graphene (beta-CD/RGO) water suspension on conductive PET substrate with microelectronic printer. beta-CD/RGO not only served as the pH sensitive material for pH response electrode with good sensitivity, selectivity and reproducibility due to its abundant oxygen-containing functional groups, but also worked as the ion-to-electron transducer for K+ selective electrode with good sensitivity. The wearable sensor exhibited good potential stability at different bending states. On-body sweat pH and K+ measurements showed high accuracy compared with ex-situ analysis.

引用

页数：9

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