Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing
The rapid development of smart electronic skin has led researchers to design a variety of flexible and stretchable devices that can be used to monitor physiological and environmental signals. In this work, we successfully demonstrate a color-adjustable and conductive wearable optical–electronic skin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Biosensors |
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| Online Access: | https://www.mdpi.com/2079-6374/15/5/281 |
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| author | Jia-Li Xu Guangyao Zhao Jiachen Wang An Tang Jun-Tao Liu Zhijie Zhu Qiang Zhang Yu Tian |
| author_facet | Jia-Li Xu Guangyao Zhao Jiachen Wang An Tang Jun-Tao Liu Zhijie Zhu Qiang Zhang Yu Tian |
| author_sort | Jia-Li Xu |
| collection | DOAJ |
| description | The rapid development of smart electronic skin has led researchers to design a variety of flexible and stretchable devices that can be used to monitor physiological and environmental signals. In this work, we successfully demonstrate a color-adjustable and conductive wearable optical–electronic skin (OE-skin) based on photonic crystal hydrogel that is capable of delivering both optical and electrical signal responses synchronously. The OE-skin is fabricated by incorporating a structural colored layer, composed of periodically aligned magnetic nanoparticles, into a polyacrylamide hydrogel matrix that contains tea polyphenols and borax. The dynamic boronate ester bonds formed between borax and the catechol groups of tea polyphenols are able to enhance the mechanical properties of the OE-skin, while also conferring excellent electrical conductivity, high sensitivity, and a rapid electrical response. Additionally, the tea polyphenols, which are natural active compounds derived from tea, possess diverse bioactive properties, thereby endowing the OE-skin with excellent antibacterial and biocompatibility characteristics. In addition, the developed electronic skin successfully demonstrates its capability in synergistic electronic and optical sensing during human motion monitoring, indicating broad application prospects in the field of smart wearable sensors. |
| format | Article |
| id | doaj-art-fa73e18cd9484bd3b2b328e74dfeecaa |
| institution | DOAJ |
| issn | 2079-6374 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biosensors |
| spelling | doaj-art-fa73e18cd9484bd3b2b328e74dfeecaa2025-08-20T03:14:32ZengMDPI AGBiosensors2079-63742025-04-0115528110.3390/bios15050281Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable SensingJia-Li Xu0Guangyao Zhao1Jiachen Wang2An Tang3Jun-Tao Liu4Zhijie Zhu5Qiang Zhang6Yu Tian7School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, ChinaDepartment of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaJiangsu Advanced Textile Engineering Technology Center, Jiangsu College of Engineering and Technology, Nantong 226007, ChinaDepartment of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaThe rapid development of smart electronic skin has led researchers to design a variety of flexible and stretchable devices that can be used to monitor physiological and environmental signals. In this work, we successfully demonstrate a color-adjustable and conductive wearable optical–electronic skin (OE-skin) based on photonic crystal hydrogel that is capable of delivering both optical and electrical signal responses synchronously. The OE-skin is fabricated by incorporating a structural colored layer, composed of periodically aligned magnetic nanoparticles, into a polyacrylamide hydrogel matrix that contains tea polyphenols and borax. The dynamic boronate ester bonds formed between borax and the catechol groups of tea polyphenols are able to enhance the mechanical properties of the OE-skin, while also conferring excellent electrical conductivity, high sensitivity, and a rapid electrical response. Additionally, the tea polyphenols, which are natural active compounds derived from tea, possess diverse bioactive properties, thereby endowing the OE-skin with excellent antibacterial and biocompatibility characteristics. In addition, the developed electronic skin successfully demonstrates its capability in synergistic electronic and optical sensing during human motion monitoring, indicating broad application prospects in the field of smart wearable sensors.https://www.mdpi.com/2079-6374/15/5/281optical–electronic skinstructural colordual-signal outputdynamic boronate ester bonds |
| spellingShingle | Jia-Li Xu Guangyao Zhao Jiachen Wang An Tang Jun-Tao Liu Zhijie Zhu Qiang Zhang Yu Tian Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing Biosensors optical–electronic skin structural color dual-signal output dynamic boronate ester bonds |
| title | Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing |
| title_full | Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing |
| title_fullStr | Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing |
| title_full_unstemmed | Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing |
| title_short | Optical–Electronic Skin Based on Tea Polyphenol for Dual Signal Wearable Sensing |
| title_sort | optical electronic skin based on tea polyphenol for dual signal wearable sensing |
| topic | optical–electronic skin structural color dual-signal output dynamic boronate ester bonds |
| url | https://www.mdpi.com/2079-6374/15/5/281 |
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