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• W3022311892 endingPage "3056" @default.
• W3022311892 startingPage "3039" @default.
• W3022311892 abstract "Electrospinning is a widely used technology that can produce scaffolds with high porosity and surface area for bone regeneration. However, the small pore sizes in electrospun scaffolds constrain cell growth and tissue-ingrowth. In this study, novel drug-loading core-shell scaffolds were fabricated via electrospinning and freeze drying to facilitate the repair of tibia bone defects in rabbit models.The collagen core scaffolds were freeze-dried containing icariin (ICA)-loaded chitosan microspheres. The shell scaffolds were electrospun using collagen, polycaprolactone and hydroxyapatite materials to form CPH composite scaffolds with the ones containing ICA microspheres named CPHI. The core-shell scaffolds were then cross-linked by genipin. The morphology, microstructure, physical and mechanical properties of the scaffolds were assessed. Rat marrow mesenchymal stem cells from the wistar rat were cultured with the scaffolds. The cell adhesion and proliferation were analysed. Adult rabbit models with tibial plateau defects were used to evaluate the performance of these scaffolds in repairing the bone defects over 4 to 12 weeks.The results reveal that the novel drug-loading core-shell scaffolds were successfully fabricated, which showed good physical and chemical properties and appropriate mechanical properties. Furthermore, excellent cells attachment was observed on the CPHI scaffolds. The results from radiography, micro-computed tomography, histological and immunohistochemical analysis demonstrated that abundant new bones were formed on the CPHI scaffolds.These new core-shell composite scaffolds have great potential for bone tissue engineering applications and may lead to effective bone regeneration and repair." @default.
• W3022311892 created "2020-05-13" @default.
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• W3022311892 date "2020-05-01" @default.
• W3022311892 modified "2023-10-13" @default.
• W3022311892 title "<p>Electrospun Icariin-Loaded Core-Shell Collagen, Polycaprolactone, Hydroxyapatite Composite Scaffolds for the Repair of Rabbit Tibia Bone Defects</p>" @default.
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• W3022311892 doi "https://doi.org/10.2147/ijn.s238800" @default.
• W3022311892 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7200251" @default.
• W3022311892 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32431500" @default.
• W3022311892 hasPublicationYear "2020" @default.
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