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An adhesive, stretchable, and freeze-resistant conductive hydrogel strain sensor for handwriting recognition and depth motion monitoring.
Cui, Liangliang; Hu, Chunyan; Wang, Wei; Zheng, Jian; Zhu, Zhijia; Liu, Baojiang.
Afiliación
  • Cui L; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China.
  • Hu C; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China.
  • Wang W; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China; Department of Textile & Garment Engineeri
  • Zheng J; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China.
  • Zhu Z; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China. Electronic address: zjzhu@dhu.edu.cn.
  • Liu B; Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, College of Chemistry and Chemical Engineering, Innovation Center for Textile Science and Technology, No. 2999 North Renmin Road, Shanghai 201620, China. Electronic address: bjliu@dhu.edu.cn.
J Colloid Interface Sci ; 677(Pt A): 273-281, 2024 Jul 29.
Article en En | MEDLINE | ID: mdl-39094488
ABSTRACT
Wearable electronics based on conductive hydrogels (CHs) offer remarkable flexibility, conductivity, and versatility. However, the flexibility, adhesiveness, and conductivity of traditional CHs deteriorate when they freeze, thereby limiting their utility in challenging environments. In this work, we introduce a PHEA-NaSS/G hydrogel that can be conveniently fabricated into a freeze-resistant conductive hydrogel by weakening the hydrogen bonds between water molecules. This is achieved through the synergistic interaction between the charged polar end group (-SO3-) and the glycerol-water binary solvent system. The conductive hydrogel is simultaneously endowed with tunable mechanical properties and conductive pathways by the modulation caused by varying material compositions. Due to the uniform interconnectivity of the network structure resulting from strong intermolecular interactions and the enhancement effect of charged polar end-groups, the resulting hydrogel exhibits 174 kPa tensile strength, 2105 % tensile strain, and excellent sensing ability (GF = 2.86, response time 121 ms), and the sensor is well suited for repeatable and stable monitoring of human motion. Additionally, using the Full Convolutional Network (FCN) algorithm, the sensor can be used to recognize English letter handwriting with an accuracy of 96.4 %. This hydrogel strain sensor provides a simple method for creating multi-functional electronic devices, with significant potential in the fields of multifunctional electronics such as soft robotics, health monitoring, and human-computer interaction.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Imprimir
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PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos