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Chen Y, Jia Z, Shafiq M, Xie X, Xiao X, Castro R, Rodrigues J, Wu J, Zhou G, Mo X. Gas foaming of electrospun poly(L-lactide-co-caprolactone)/silk fibroin nanofiber scaffolds to promote cellular infiltration and tissue regeneration. Colloids Surf B Biointerfaces 2021; 201:111637. [PMID: 33639507 DOI: 10.1016/j.colsurfb.2021.111637] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 10/27/2020] [Revised: 02/08/2021] [Accepted: 02/15/2021] [Indexed: 02/05/2023]
Abstract
Electrospun nanofibers emulate extracellular matrix (ECM) morphology and architecture; however, small pore size and tightly-packed fibers impede their translation in tissue engineering. Here we exploited in situ gas foaming to afford three-dimensional (3D) poly(L-lactide-co-ε-caprolactone)/silk fibroin (PLCL/SF) scaffolds, which exhibited nanotopographic cues and a multilayered structure. The addition of SF improved the hydrophilicity and biocompatibility of 3D PLCL scaffolds. Three-dimensional scaffolds exhibited larger pore size (38.75 ± 9.78 μm2) and high porosity (87.1% ± 1.5%) than that of their 2D counterparts. 3D scaffolds also improved the deposition of ECM components and neo-vessel regeneration as well as exhibited more numbers of CD163+/CCR7+ cells after 2 weeks implantation in a subcutaneous model. Collectively, 3D PLCL/SF scaffolds have broad implications for regenerative medicine and tissue engineering applications.
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Affiliation(s)
- Yujie Chen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China
| | - Zihao Jia
- Department of Plastic and Reconstructive Surgery, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Muhammad Shafiq
- Department of Chemistry, Pakistan Institute of Engineering & Applied Sciences (PIEAS), Nilore, 45650, Islamabad, Pakistan
| | - Xianrui Xie
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China
| | - Xianghao Xiao
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China
| | - Rita Castro
- CQM- Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal
| | - João Rodrigues
- CQM- Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal
| | - Jinglei Wu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Xiumei Mo
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, China.
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