Cited by 174Analytical Chemistry and SensorsElectrochemical sensors and biosensorsAdvanced Sensor and Energy Harvesting Materials

Wearable Sweatband Sensor Platform Based on Gold Nanodendrite Array as Efficient Solid Contact of Ion-Selective Electrode

Wang, Shuqi, Wu, Yongjin, Gu, Yang, Li, Tie, Luo, Hui, Li, Lian-Hui, Bai, Yuanyuan, Li, Lili +4 more·2017·Analytical Chemistry

Abstract

As chemical sensors are in great demand for portable and wearable analytical applications, it is highly desirable to develop an all-solid-state ion-selective electrode (ISE) and reference electrode (RE) platform with simplicity and stability. Here we propose a wearable sensor platform with a new type of all-solid-state ISE based on a gold nanodendrite (AuND) array electrode as the solid contact and a poly(vinyl acetate)/inorganic salt (PVA/KCl) membrane-coated all-solid-state RE. A simple and controllable method was developed to fabricate the AuNDs on a microwell array patterned chip by one-step electrodeposition without additional processing. For the first time, the AuND electrodes with different real surface area and double layer capacitance were developed as solid contact of the Na + -ISE to investigate the relationship between performance of the ISE and surface area. As-prepared AuND-ISE with larger surface area (∼7.23 cm 2 ) exhibited enhanced potential stability compared to those with smaller surface area (∼1.85 cm 2 ) and to bare Au ISE. Important as the ISE, the PVA/KCl membrane-coated Ag/AgCl RE exhibited highly stable potential even after 3 months’ storage. Finally, a wearable sweatband sensor platform was developed for efficient sweat collection and real-time analysis of sweat sodium during indoor exercise. This all-solid-state ISE and RE integrated sensor platform provided a very simple and reliable way to construct diverse portable and wearable devices for healthcare, sports, clinical diagnosis, and environmental analysis applications.

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Crossref · 10.1021/acs.analchem.7b01560

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34 of 34 references verified0 citation errors · 0 not checkable

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  • Various materials have been used as working electrodes, such as noble metals (Au and Ag), metallic oxides, graphene, and carbon black.

    “Various materials have been used as working electrodes, such as noble metal (Au and Ag) (20–22), metallic oxides (23, 24), graphene (25, 26), and carbon black (27).”

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Authors
Wang, S., Wu, Y., Gu, Y., Li, T., Luo, H., Li, L.-H., Bai, Y., Li, L., Liu, L., Cao, Y., Ding, H., & Zhang, T.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Zhang, Ting
Venue
Analytical Chemistry
Published
2017-09-22
Volume
89
Issue
19
Pages
10224-10231
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2751860959
Cited by
174
References
34
Citations by year
2026: 7 · 2025: 26 · 2024: 13 · 2023: 27 · 2022: 22 · 2021: 26 · 2020: 17 · 2019: 17 · 2018: 18 · 2017: 1
FWCI
9.90
Type
journal article
Language
en
Open access
closed
Locations
  • Analytical Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • China Postdoctoral Science Foundation (2017M611945)
  • Natural Science Foundation of Jiangsu Province (BK20150364)
  • National Natural Science Foundation of China (61574163)
Topics
  • Physical Sciences › Chemical Engineering › Bioengineering › Analytical Chemistry and Sensors
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
Keywords
ion-selective electrodes, solid-contact ion-selective electrodes, reference electrode, Ag/AgCl electrodes, electrodeposition, microwell arrays, electrode surface area, double-layer capacitance, potential stability, sweat sodium, wearable sensors, sweat collection

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