Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors
Abstract Conductive hydrogels (CHs) have received numerous attentions for potential applications in flexible electronics. However, the construction of high‐performance CHs with high stretchability, favorable electrical conductivity, and reversible adhesiveness simultaneously still remains a great ch...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-05-01
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| Series: | Advanced Sensor Research |
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| Online Access: | https://doi.org/10.1002/adsr.202500005 |
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| author | Huawei Gao Yupan Han Mengjie Huang Jianwei Li Hongling Sun Guojie Li Lin Dong Xianhu Liu Chuntai Liu Changyu Shen |
| author_facet | Huawei Gao Yupan Han Mengjie Huang Jianwei Li Hongling Sun Guojie Li Lin Dong Xianhu Liu Chuntai Liu Changyu Shen |
| author_sort | Huawei Gao |
| collection | DOAJ |
| description | Abstract Conductive hydrogels (CHs) have received numerous attentions for potential applications in flexible electronics. However, the construction of high‐performance CHs with high stretchability, favorable electrical conductivity, and reversible adhesiveness simultaneously still remains a great challenge. Herein, an ionic CH with the above characteristics is proposed via introducing phytic acid (PA) into semi‐interpenetrating cross‐linked network of poly(acrylamide‐co‐N‐(hydroxymethyl) acrylamide) and chitosan hydrogels. The synergy of hydrogen bonds and electrostatic interactions endows the obtained hydrogel with high stretchability (1131%), toughness (88.32 kJ·m−3), and satisfactory adhesiveness (25.78 kPa to wood). The presence of PA enables the composite hydrogel to exhibit favorable electrical conductivity. Impressively, the resultant hydrogel can be assembled into the wearable strain sensor to present high sensitivity of 1.32 in the wide strain response range (0–1131%), rapid response time (340 ms), and excellent cyclic stability. More importantly, the prepared stain sensor can precisely recognize complicated human movements and physiological activities and realize the information encryption, making this hydrogel a promising candidate for preparing high‐performance electronics. |
| format | Article |
| id | doaj-art-e626db0895984aa4a7ff0e313badd7af |
| institution | Kabale University |
| issn | 2751-1219 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Sensor Research |
| spelling | doaj-art-e626db0895984aa4a7ff0e313badd7af2025-08-20T03:48:47ZengWiley-VCHAdvanced Sensor Research2751-12192025-05-0145n/an/a10.1002/adsr.202500005Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain SensorsHuawei Gao0Yupan Han1Mengjie Huang2Jianwei Li3Hongling Sun4Guojie Li5Lin Dong6Xianhu Liu7Chuntai Liu8Changyu Shen9Key Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaHenan Academy of Sciences Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaSchool of Physics & Microelectronics Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaKey Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou University Zhengzhou Henan 450002 ChinaAbstract Conductive hydrogels (CHs) have received numerous attentions for potential applications in flexible electronics. However, the construction of high‐performance CHs with high stretchability, favorable electrical conductivity, and reversible adhesiveness simultaneously still remains a great challenge. Herein, an ionic CH with the above characteristics is proposed via introducing phytic acid (PA) into semi‐interpenetrating cross‐linked network of poly(acrylamide‐co‐N‐(hydroxymethyl) acrylamide) and chitosan hydrogels. The synergy of hydrogen bonds and electrostatic interactions endows the obtained hydrogel with high stretchability (1131%), toughness (88.32 kJ·m−3), and satisfactory adhesiveness (25.78 kPa to wood). The presence of PA enables the composite hydrogel to exhibit favorable electrical conductivity. Impressively, the resultant hydrogel can be assembled into the wearable strain sensor to present high sensitivity of 1.32 in the wide strain response range (0–1131%), rapid response time (340 ms), and excellent cyclic stability. More importantly, the prepared stain sensor can precisely recognize complicated human movements and physiological activities and realize the information encryption, making this hydrogel a promising candidate for preparing high‐performance electronics.https://doi.org/10.1002/adsr.202500005high stretchabilityhuman movement recognitionionic conductive hydrogelroust interface adhesionwearable strain sensor |
| spellingShingle | Huawei Gao Yupan Han Mengjie Huang Jianwei Li Hongling Sun Guojie Li Lin Dong Xianhu Liu Chuntai Liu Changyu Shen Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors Advanced Sensor Research high stretchability human movement recognition ionic conductive hydrogel roust interface adhesion wearable strain sensor |
| title | Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors |
| title_full | Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors |
| title_fullStr | Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors |
| title_full_unstemmed | Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors |
| title_short | Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors |
| title_sort | design of highly stretchable self adhesive ionic conductive hydrogels for wearable strain sensors |
| topic | high stretchability human movement recognition ionic conductive hydrogel roust interface adhesion wearable strain sensor |
| url | https://doi.org/10.1002/adsr.202500005 |
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