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Li M, Tian W, Yu Y, Zhang Y, Zhang B, Xu J, Wang J. Effect of degumming degree on the structure and tensile properties of RSF/RSS composite films prepared by one-step extraction. Sci Rep 2023; 13:6689. [PMID: 37095290 PMCID: PMC10126198 DOI: 10.1038/s41598-023-33844-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/19/2023] [Indexed: 04/26/2023] Open
Abstract
Regenerated silk fibroin (RSF) and regenerated sericin (RSS) have attracted much attention for tissue engineering due to excellent biocompatibility and controllable degradation. However, pure RSF films prepared by existing methods are brittle, which limits applications in the field of high-strength and/or flexible tissues (e.g. cornea, periosteum and dura). A series of RSF/RSS composite films were developed from solutions prepared by dissolving silks with different degumming rates. The molecular conformation, crystalline structure and tensile properties of the films and the effect of sericin content on the structure and properties were investigated. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction results revealed more β-sheets in films prepared by boiling water degumming than in Na2CO3-degummed RSFC film. Analysis of mechanical properties showed that the breaking strength (3.56 MPa) and elongation (50.51%) of boiling water-degummed RSF/RSS film were significantly increased compared with RSFC film (2.60 MPa and 32.31%), and the flexibility of films could be further improved by appropriately reducing the degumming rate.
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Affiliation(s)
- Meng Li
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Wei Tian
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Yangxiao Yu
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Yao Zhang
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Boyu Zhang
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Jianmei Xu
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China
| | - Jiannan Wang
- College of Textile and Clothing Engineering, Soochow University, No. 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, 215123, Jiangsu, China.
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Liu H, Wang C, Sun X, Zhan C, Li Z, Qiu L, Luo R, Liu H, Sun X, Li R, Zhang J. Silk Fibroin/Collagen/Hydroxyapatite Scaffolds Obtained by 3D Printing Technology and Loaded with Recombinant Human Erythropoietin in the Reconstruction of Alveolar Bone Defects. ACS Biomater Sci Eng 2022; 8:5245-5256. [PMID: 36336837 DOI: 10.1021/acsbiomaterials.2c00690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The fast osteogenesis of the large alveolar fossa and the maintenance of the height of the alveolar ridge after tooth extraction have always been a clinical challenge. Therefore, this work describes the creation of innovative silk fibroin/collagen/hydroxyapatite (SCH) biological scaffolds by 3D printing technology, which are loaded with recombinant human erythropoietin (rh-EPO) for the reconstruction of bone defects. Low-temperature 3D printing can maintain the biological activity of silk fibroin and collagen. The SCH scaffolds showed the ideal water absorption and porosity, being a sustained-release carrier of rh-EPO. The optimized scaffolds had ideal mechanical properties in vitro, and MC3T3-E1 cells could easily adhere and proliferate on it. In vivo experiments in rabbits demonstrated that the composite scaffolds gradually degraded and promoted the accumulation and proliferation of osteoblasts and the formation of collagen fibers, significantly promoting the reconstruction of mandibular defects. In this study, a novel composite biological scaffold was prepared using 3D printing technology, and the scaffold was innovatively combined with the multifunctional growth factor rh-EPO. This provides a new optimized composite material for the reconstruction of irregular mandible defects, and this biomaterial is promising for clinical reconstruction of alveolar bone defects.
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Affiliation(s)
- Han Liu
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Chao Wang
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Xiaoqian Sun
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Chaojun Zhan
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Zixiao Li
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Lin Qiu
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100034, China
| | - Rui Luo
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China.,School of Medicine, Nankai University, Tianjin 300071, China
| | - Hao Liu
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Xiaodi Sun
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Ruixin Li
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Jun Zhang
- Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
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Gang H, Wang H, Ma S, Wang C, Bian L, Wang Z, Zhou Y, Gu S, Liu X, Xu W, Zhuang Y, Yang H. Polylactic acid/silk fibroin composite hollow fibers as excellent controlled drug release systems. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hanlin Gang
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Han Wang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education Wuhan Textile University Wuhan China
- Institute for Frontier Materials Deakin University Geelong Victoria Australia
| | - Sitian Ma
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Chaorong Wang
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Lixing Bian
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education Wuhan Textile University Wuhan China
| | - Zonglei Wang
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education Wuhan Textile University Wuhan China
| | - Yingshan Zhou
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Shaojin Gu
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Xin Liu
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
| | - Weilin Xu
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education Wuhan Textile University Wuhan China
| | - Yan Zhuang
- College of Textile Science and Engineering Wuhan Textile University Wuhan China
| | - Hongjun Yang
- College of Materials Science and Engineering Wuhan Textile University Wuhan China
- Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education Wuhan Textile University Wuhan China
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Sangkert S, Juncheed K, Meesane J. Osteoconductive Silk Fibroin Binders for Bone Repair in Alveolar Cleft Palate: Fabrication, Structure, Properties, and In Vitro Testing. J Funct Biomater 2022; 13:jfb13020080. [PMID: 35735935 PMCID: PMC9224859 DOI: 10.3390/jfb13020080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Osteoconductive silk fibroin (SF) binders were fabricated for the bone repair of an alveolar cleft defect. Binders were prefigureared by mixing different ratios of a mixture of random coils and SF aggregation with SF fibrils: 100:0 (SFB100), 75:25 (SFB75), 50:50 (SFB50), 25:75 (SFB25), and 0:100 (SFB0). The gelation, molecular organization, structures, topography, and morphology of the binders were characterized and observed. Their physical, mechanical, and biological properties were tested. The SF binders showed gelation via self-assembly of SF aggregation and fibrillation. SFB75, SFB50, and SFB25 had molecular formation via the amide groups and showed more structural stability than SFB100. The morphology of SFB0 demonstrated the largest pore size. SFB0 showed a lowest hydrophilicity. SFB100 showed the highest SF release. SFB25 had the highest maximum load. SFB50 exhibited the lowest elongation at break. Binders with SF fibrils showed more cell viability and higher cell proliferation, ALP activity, calcium deposition, and protein synthesis than without SF fibrils. Finally, the results were deduced: SFB25 demonstrated suitable performance that is promising for the bone repair of an alveolar cleft defect.
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