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Lin F, Lin W, Chen J, Sun C, Zheng X, Xu Y, Lu B, Chen J, Huang B. Tannic Acid-Induced Gelation of Aqueous Suspensions of Cellulose Nanocrystals. Polymers (Basel) 2023; 15:4092. [PMID: 37896337 PMCID: PMC10610654 DOI: 10.3390/polym15204092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Nanocellulose hydrogels are a crucial category of soft biomaterials with versatile applications in tissue engineering, artificial extracellular matrices, and drug-delivery systems. In the present work, a simple and novel method, involving the self-assembly of cellulose nanocrystals (CNCs) induced by tannic acid (TA), was developed to construct a stable hydrogel (SH-CNC/TA) with oriented porous network structures. The gelation process is driven by the H-bonding interaction between the hydroxyl groups of CNCs and the catechol groups of TA, as substantiated by the atoms in molecules topology analysis and FTIR spectra. Interestingly, the assembled hydrogels exhibited a tunable hierarchical porous structure and mechanical moduli by varying the mass ratio of CNCs to TA. Furthermore, these hydrogels also demonstrate rapid self-healing ability due to the dynamic nature of the H-bond. Additionally, the structural stability of the SH-CNC/TA hydrogel could be further enhanced and adjusted by introducing coordination bonding between metal cations and TA. This H-bonding driven self-assembly method may promote the development of smart cellulose hydrogels with unique microstructures and properties for biomedical and other applications.
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Affiliation(s)
- Fengcai Lin
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Wenyan Lin
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Jingwen Chen
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Chenyi Sun
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Xiaoxiao Zheng
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Yanlian Xu
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Beili Lu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China;
| | - Jipeng Chen
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (W.L.); (J.C.); (C.S.); (X.Z.); (Y.X.)
| | - Biao Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China;
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