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Bioinspired Fully Physically Cross-linked Double Network Hydrogels with a Robust, Tough and Self-healing Structure by Mohammad Sabzi; Navid Samadi; Farhang Abbasi; Gholam Reza Mahdavinia; Masoud Babaahmadi is a Engineering article available to read on EtoBox.
What is Bioinspired Fully Physically Cross-linked Double Network Hydrogels with a Robust, Tough and Self-healing Structure about?
The conventional covalently cross-linked double network (DN) hydrogels with high stiffness often show low toughness and self-healing property due to the irreversible bond breakages in their networks. Therefore, scarcity of hydrogels that possess simultaneous features of stiffness, toughness, and autonomous self-healing properties at the same time remains a great challenge and seriously limits their biomedical applications. While, many natural materials acquire these features from their dynamic sacrificial bonds. Inspired by biomaterials, herein we propose a novel strategy to design stiff, tough and self-healing DN gels by substitution of both covalently cross-linked networks with strong, dynamic hydrogen bond cross-linked networks. The prepared fully physically cross-linked DN gels composed of strong agar biopolymer gel as the first network and tough polyvinyl alcohol (PVA) biopolymer gel as the second network. The DN gels demonstrated multiple-energy dissipating mechanisms with a high modulus up to 2200kPa, toughness up to 2111kJm, and ability to self-heal quickly and autonomously with regaining 67% of original strength only after 10min. The developed DN gels will open a new avenu
Who reads Bioinspired Fully Physically Cross-linked Double Network Hydrogels with a Robust, Tough and Self-healing Structure?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Mohammad Sabzi; Navid Samadi; Farhang Abbasi; Gholam Reza Mahdavinia; Masoud Babaahmadi
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0928-4931)
- Published
- 2017
- Language
- EN
- Field
- Engineering (Physical Sciences)