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3D microprinting of QR-code integrated hydrogel tactile sensor for real-time E-healthcare.

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Bibliographic Details
Title: 3D microprinting of QR-code integrated hydrogel tactile sensor for real-time E-healthcare.
Authors: Li, Zi-Rong1 (AUTHOR), Lv, Tian-Run1 (AUTHOR), Yang, Zhenxu2,3,4 (AUTHOR), Zhang, Wen-Hai1 (AUTHOR), Yin, Ming-Jie1 (AUTHOR) yinmj@bjut.edu.cn, Yong, Ken-Tye1,2,3,4 (AUTHOR) ken.yong@sydney.edu.au, An, Quan-Fu1 (AUTHOR) anqf@bjut.edu.cn
Source: Chemical Engineering Journal. Mar2024, Vol. 484, pN.PAG-N.PAG. 1p.
Subjects: Tactile sensors, Conducting polymers, Two-dimensional bar codes, Hydrogels, Strain sensors, Linear polymers
Abstract: [Display omitted] • Highly stretchable hydrogels with a stretchability of 2100% were fabricated. • Conductive nanoparticles were doped into the hydrogels to enhance the sensitivity. • 3D printing technique was employed to integrate quick response code into the sensor. • The fabricated wearable device can be applied for electronic healthcare. Stretchable strain sensors have the potential to significantly advance electronic healthcare (E-healthcare). However, current challenges, including a limited detection range, low sensitivity, aggregation of conductive nanoparticles, and the inherent rigidity of conductive polymers within hydrogel matrices, hinder their progress. In our study, we employed a dual approach: we tailored both physical and chemical bond densities and coupled them with conductive polymer nanoparticles. As a result, we developed a stretchable hydrogel strain sensor embedded with a quick response code. This innovation achieved an impressive detection range of up to 1500% and a high gauge factor of 16.6. By modifying the hydrogen bond strength and converting conductive polymer nanoparticles into linear polymer chains, we managed to enhance the sensor's stretchability to 2100%. Moreover, the incorporation of a quick response code enabled the sensor to simultaneously monitor in real-time and encode information. Thus, our sensor emerges as a robust contender for pioneering advancements in E-healthcare, potentially supporting intricate applications like rehabilitation progression tracking. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:[Display omitted] • Highly stretchable hydrogels with a stretchability of 2100% were fabricated. • Conductive nanoparticles were doped into the hydrogels to enhance the sensitivity. • 3D printing technique was employed to integrate quick response code into the sensor. • The fabricated wearable device can be applied for electronic healthcare. Stretchable strain sensors have the potential to significantly advance electronic healthcare (E-healthcare). However, current challenges, including a limited detection range, low sensitivity, aggregation of conductive nanoparticles, and the inherent rigidity of conductive polymers within hydrogel matrices, hinder their progress. In our study, we employed a dual approach: we tailored both physical and chemical bond densities and coupled them with conductive polymer nanoparticles. As a result, we developed a stretchable hydrogel strain sensor embedded with a quick response code. This innovation achieved an impressive detection range of up to 1500% and a high gauge factor of 16.6. By modifying the hydrogen bond strength and converting conductive polymer nanoparticles into linear polymer chains, we managed to enhance the sensor's stretchability to 2100%. Moreover, the incorporation of a quick response code enabled the sensor to simultaneously monitor in real-time and encode information. Thus, our sensor emerges as a robust contender for pioneering advancements in E-healthcare, potentially supporting intricate applications like rehabilitation progression tracking. [ABSTRACT FROM AUTHOR]
ISSN:13858947
DOI:10.1016/j.cej.2024.149375