Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 40, Issue 17, Pages 2118-2134Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.202200085
Keywords
Gels; Physical cross-Links; Mechanical properties; Functionality; Sensors
Categories
Funding
- National Natural Science Foundation of China [52173144, 51803188, 21725403]
- Excellent Youth Fund Project of Henan Natural Science Foundation [222300420079]
- Shenzhen Science and Technology Innovation Commission [KQTD20200820113012029]
- Key Research and Development and Promotion Projects of Henan Province [212102210635]
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This review summarizes the gelation mechanisms of chitosan physical networks and highlights the design, construction, and performance regulation of chitosan physical network-based hydrogels. It also discusses the recent progress in functional hydrogels for flexible electronics and biomaterials.
Comprehensive Summary In spite of biological tissue-like peculiarity, multifarious functionalities and great application prospect, the low mechanics and soften behavior of hydrogels still retain a problem to be addressed for repetitive weight-bearing fields of flexible electronics, actuators, substitutions of soft tissues, wound dressing, wearable or implantable devices. Due to the distinct combination of diversity, reversibility and impressive disruption-reconstruction capacity, the chitosan physical cross-links can server as recoverable sacrificial bonds to construct multifarious energy-dissipative and anti-soften hydrogels and further broaden their diversified applications. In this review, we summarized the gelation mechanisms of chitosan physical networks and highlighted the chitosan physical network based hydrogels in rational design, construction principle, and structure and performance regulation. The recent progress in functional hydrogels for flexible electronics and biomaterials was systematically discussed. Overall, the review will provide comprehensive guidelines on the design principle, performance modulation and functionality construction of energy-dissipative and soften resistant hydrogels.
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