Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat
Summary: Most wearable biosensors struggle to balance flexibility and conductivity in their sensing interfaces. In this study, we propose a wearable sensor featuring a highly stretchable, three-dimensional conductive network structure based on liquid metal. The sensor interface utilizes a patterned...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S258900422402964X |
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| author | Wensi Zhang Shuyue Jiang Hongquan Yu Shilun Feng Kaihuan Zhang |
| author_facet | Wensi Zhang Shuyue Jiang Hongquan Yu Shilun Feng Kaihuan Zhang |
| author_sort | Wensi Zhang |
| collection | DOAJ |
| description | Summary: Most wearable biosensors struggle to balance flexibility and conductivity in their sensing interfaces. In this study, we propose a wearable sensor featuring a highly stretchable, three-dimensional conductive network structure based on liquid metal. The sensor interface utilizes a patterned Ga@MXene hydrogel system, where gallium (Ga) grafted onto MXene provides enhanced electrical conductivity and malleability. MXene provides excellent conductivity and a three-dimensional layered structure. Additionally, the chitosan (CS) hydrogel, with its superior water absorption and stretchability, allows the electrode to retain sweat and closely stick to the skin. The sensor demonstrates a low limit of detection (0.77 μM), high sensitivity (1.122 μA⋅μM⁻1⋅cm⁻2), and a broad detection range (10–1,000 μM), meeting the requirements for a wide range of applications. Notably, the sensor can also induce perspiration in the wearer. The three-dimensional porous structure of the Ga@MXene/CS biosensor ensures excellent conductivity and flexibility, making it suitable for a variety of applications. |
| format | Article |
| id | doaj-art-0ef36b4bd0ab44eb9528e17f473e7893 |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-0ef36b4bd0ab44eb9528e17f473e78932025-01-24T04:45:34ZengElsevieriScience2589-00422025-02-01282111737Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweatWensi Zhang0Shuyue Jiang1Hongquan Yu2Shilun Feng3Kaihuan Zhang4State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, ChinaState Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; School of Graduate Study, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; School of Graduate Study, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authorState Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China; School of Graduate Study, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authorSummary: Most wearable biosensors struggle to balance flexibility and conductivity in their sensing interfaces. In this study, we propose a wearable sensor featuring a highly stretchable, three-dimensional conductive network structure based on liquid metal. The sensor interface utilizes a patterned Ga@MXene hydrogel system, where gallium (Ga) grafted onto MXene provides enhanced electrical conductivity and malleability. MXene provides excellent conductivity and a three-dimensional layered structure. Additionally, the chitosan (CS) hydrogel, with its superior water absorption and stretchability, allows the electrode to retain sweat and closely stick to the skin. The sensor demonstrates a low limit of detection (0.77 μM), high sensitivity (1.122 μA⋅μM⁻1⋅cm⁻2), and a broad detection range (10–1,000 μM), meeting the requirements for a wide range of applications. Notably, the sensor can also induce perspiration in the wearer. The three-dimensional porous structure of the Ga@MXene/CS biosensor ensures excellent conductivity and flexibility, making it suitable for a variety of applications.http://www.sciencedirect.com/science/article/pii/S258900422402964XHealth sciencesNatural sciencesApplied sciences |
| spellingShingle | Wensi Zhang Shuyue Jiang Hongquan Yu Shilun Feng Kaihuan Zhang Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat iScience Health sciences Natural sciences Applied sciences |
| title | Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat |
| title_full | Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat |
| title_fullStr | Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat |
| title_full_unstemmed | Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat |
| title_short | Ga@MXene-based flexible wearable biosensor for glucose monitoring in sweat |
| title_sort | ga mxene based flexible wearable biosensor for glucose monitoring in sweat |
| topic | Health sciences Natural sciences Applied sciences |
| url | http://www.sciencedirect.com/science/article/pii/S258900422402964X |
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