3D printing of self-healing ferrogel prepared from glycol chitosan, oxidized hyaluronate, and iron oxide nanoparticles
- Authors
- Ko, Eun Seok; Kim, Choonggu; Choi, Youngtae; Lee, Kuen Yong
- Issue Date
- Oct-2020
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Self-healing; Ferrogel; Glycol chitosan; Oxidized hyaluronate; 3D printing
- Citation
- CARBOHYDRATE POLYMERS, v.245, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- CARBOHYDRATE POLYMERS
- Volume
- 245
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1751
- DOI
- 10.1016/j.carbpol.2020.116496
- ISSN
- 0144-8617
- Abstract
- Hydrogel systems that show self-healing ability after mechanical damage are receiving increasing attention. However, self-healing hydrogels suitable for biomedical applications are limited owing to complex preparation methods. Furthermore, few studies have demonstrated the self-healing property of ferrogels. In this study, we demonstrated that glycol chitosan (GC) and oxidized hyaluronate (OHA) can be used to form a self-healing ferrogel in the presence of superparamagnetic iron oxide nanoparticles (SPIONs) without additional chemical cross-linkers. The overall characteristics of GC/OHA/SPION ferrogel varied based on the GC/OHA ratio, SPION content, and total polymer concentration. Interestingly, GC/OHA/SPION ferrogel was used to fabricate 3D-printed constructs of various shapes via an extrusion printing method. These constructs were responsive to the magnetic field, suggesting their potential application in 4D printing. This approach to developing self-healing ferrogels with biocompatible polysaccharides may prove useful in designing and fabricating drug delivery sys-tems and tissue engineering scaffolds, via 3D printing.
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