可生物降解的电聚 ((L-乳酸-co-ε-caprolactone) /聚乙烯甘醇/生物活性玻璃复合材料支架用于骨组织工程
Joyce R de Souza1,2, Lais M Cardoso2, Priscila T A de Toledo3
1Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.
概括
这项研究提出了一种用于骨组织工程的新型复合材料支架,将聚L-乳-co-ε-caprolactone (PLCL) 和聚乙烯糖醇 (PEG) 与生物活性玻璃 (BG) 混合在一起. 开发的脚手架显示了增强的特性和细胞反应,对骨再生应用有希望.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 骨再生面临着需要先进生物材料的挑战.
- 电支架为组织工程应用提供可调节的性能.
- 生物活性玻璃的结合可以提高脚手架的性能,用于骨修复.
研究的目的:
- 开发和描述用于骨组织工程的电复合材料脚手架.
- 评估脚手架的物理,化学,机械和生物特性.
- 评估脚手架在促进骨再生的潜力,使用介质干细胞.
主要方法:
- 通过电制造的聚-L-乳-co-ε-caprolactone (PLCL) /聚乙烯糖醇 (PEG) /生物活性玻璃 (BG) 复合架构的制造.
- 综合性表征包括物理,化学,热和机械性能分析.
- 在体外生物评估使用膜骨衍生中介质干细胞,包括活力,骨诱导性和细胞粘附性测试.
主要成果:
- 在PLCL/PEG/BG支架上,胀率和水友性增加.
- 热重力测量分析证实了BG的结合和高达250°C的热稳定性.
- 随着BG的结合,观察到增强的抗拉强度和模量,以及改善的细胞活力,骨诱导性和细胞粘附性.
结论:
- 开发的PLCL/PEG/BG复合脚手架显示了对骨组织工程的有利特性.
- 脚手架表现出增强的水友性,机械强度和细胞兼容性.
- 这些发现表明这种复合脚手架的潜力是促进骨再生的先进生物材料.
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