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Sun Y, Shi M, Niu B, Xu X, Xia W, Deng C. Mg-Sr-Ca containing bioactive glass nanoparticles hydrogel modified mineralized collagen scaffold for bone repair. J Biomater Appl 2024; 39:117-128. [PMID: 38775351 DOI: 10.1177/08853282241254741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Abstract
The aim of this study is to explore the therapeutic effects of Mg-Sr-Ca containing bioactive glass nanoparticles sodium alginate hydrogel modified mineralized collagen scaffold (Mg-Sr-Ca-BGNs-SA-MC) on the repair of osteoporotic bone defect. During the study, Mg-Sr-Ca containing bioactive glass nanoparticles (Mg-Sr-Ca-BGNs) were synthesized using the sol-gel method, and the Mg-Sr-Ca-BGNs-SA-MC scaffold was synthesized by a simple method. The Mg-Sr-Ca-BGNs and the Mg-Sr-Ca-BGNs-SA-MC scaffold were observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The elements of Mg, Sr, Ca and Si were effectively integrated into Mg-Sr-Ca-BGNs. SEM analysis revealed the presence of Mg-Sr-Ca-BGNs on the scaffold's surface. Furthermore, the cytotoxicity of the scaffolds were assessed using a live/dead assay. The result of the live/dead assay demonstrated that the scaffold materials were non-toxic to cell growth. More importantly, the in vivo study indicated that implanted scaffold promoted tissue regeneration and integration with newly formed bone. Overall, the Mg-Sr-Ca-BGNs-SA-MC scaffold is suitable for guided bone regeneration and beneficial to repair of osteoporotic bone defects.
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Affiliation(s)
- Yi Sun
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
| | - Min Shi
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
| | - Bowen Niu
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
| | - Xiangyang Xu
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
| | - Wen Xia
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
| | - Chao Deng
- Anhui Provincial Engineering Research Center for Dental Materials and Application, Wannan Medical College, Wuhu, China
- School of Stomatology, Wannan Medical College, Wuhu, China
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Wang X, Yang Y, Zhao W, Zhu Z, Pei X. Recent advances of hydrogels as smart dressings for diabetic wounds. J Mater Chem B 2024; 12:1126-1148. [PMID: 38205636 DOI: 10.1039/d3tb02355a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Chronic diabetic wounds have been an urgent clinical problem, and wound dressings play an important role in their management. Due to the design of traditional dressings, it is difficult to achieve adaptive adhesion and on-demand removal of complex diabetic wounds, real-time monitoring of wound status, and dynamic adjustment of drug release behavior according to the wound microenvironment. Smart hydrogels, as smart dressings, can respond to environmental stimuli and achieve more precise local treatment. Here, we review the latest progress of smart hydrogels in wound bandaging, dynamic monitoring, and drug delivery for treatment of diabetic wounds. It is worth noting that we have summarized the most important properties of smart hydrogels for diabetic wound healing. In addition, we discuss the unresolved challenges and future prospects in this field. We hope that this review will contribute to furthering progress on smart hydrogels as improved dressing for diabetic wound healing and practical clinical application.
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Affiliation(s)
- Xu Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, South Peoples Road, Chengdu, 610041, Sichuan, China.
| | - Yuhan Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, South Peoples Road, Chengdu, 610041, Sichuan, China.
| | - Weifeng Zhao
- College of Polymer Science and Engineering, The State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhou Zhu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, South Peoples Road, Chengdu, 610041, Sichuan, China.
| | - Xibo Pei
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, South Peoples Road, Chengdu, 610041, Sichuan, China.
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