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Yilmaz-Aykut D, Torkay G, Kasgoz A, Shin SR, Bal-Ozturk A, Deligoz H. Injectable and self-healing dual crosslinked gelatin/kappa-carrageenan methacryloyl hybrid hydrogels via host-guest supramolecular interaction for wound healing. J Biomed Mater Res B Appl Biomater 2023; 111:1921-1937. [PMID: 37350561 DOI: 10.1002/jbm.b.35295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/10/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023]
Abstract
Injectable hydrogels based on natural polymers have shown great potential for various tissue engineering applications, such as wound healing. However, poor mechanical properties and weak self-healing ability are still major challenges. In this work, we introduce a host-guest (HG) supramolecular interaction between acrylate-β-cyclodextrin (Ac-β-CD) conjugated on methacrylated kappa-carrageenan (MA-κ-CA) and aromatic residues on gelatin to provide self-healing characteristics. We synthesize an MA-κ-CA to conjugate Ac-β-CD and fabricate dual crosslinked hybrid hydrogels with gelatin to mimic the native extracellular matrix (ECM). The dual crosslinking occurs on the MA-κ-CA backbone through the addition of KCl and photocrosslinking process, which enhances mechanical strength and stability. The hybrid hydrogels exhibit shear-thinning, self-healing, and injectable behavior, which apply easily under a minimally invasive manner and contribute to shear stress during the injection. In-vitro studies indicate enhanced cell viability. Furthermore, scratch assays are performed to examine cell migration and cell-cell interaction. It is envisioned that the combination of self-healing and injectable dual crosslinked hybrid hydrogels with HG interactions display a promising and functional biomaterial platform for wound healing applications.
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Affiliation(s)
- Dilara Yilmaz-Aykut
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts, USA
- Faculty of Engineering, Chemical Engineering Department, Istanbul University-Cerrahpaşa, Avcılar, Istanbul, Turkey
| | - Gulsah Torkay
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
| | - Alper Kasgoz
- Polymer Engineering Department, Faculty of Engineering, Yalova University, Yalova, Turkey
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts, USA
| | - Ayca Bal-Ozturk
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
- Faculty of Pharmacy, Department of Analytical Chemistry, Istinye University, Istanbul, Turkey
- 3D Bioprinting Design & Prototyping R&D Center, Istinye University, Zeytinburnu, Turkey
| | - Huseyin Deligoz
- Faculty of Engineering, Chemical Engineering Department, Istanbul University-Cerrahpaşa, Avcılar, Istanbul, Turkey
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