可注射和在现场加水增强的混合骨水泥,用于加速骨再生
Xing Chen1,2, Yifan Ma3, Lingfei Zhao1,2
1Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 17, 2025
概括
一种新的可注射骨质水泥结合了线性多基PEG化多糖脂酸盐 (L-PEGS) 与酸水泥 (CPC). 这种新材料通过提高注射性,机械强度和促进新的骨生长,显著提高了骨的修复能力.
科学领域:
- 生物材料科学 生物材料科学
- 整形外科工程 整形外科工程
- 再生医学是一种再生医学.
背景情况:
- 可注射的骨是最小侵入性骨增强的关键.
- 目前的骨水泥在注射性,机械稳定性,多孔性,可降解性和生物活性方面存在局限性.
研究的目的:
- 开发一种新的可注射骨质水泥,解决当前材料的局限性.
- 创造一种具有增强注射性,机械性质和骨质生成潜力的自我强化水泥.
主要方法:
- 通过将线性多基PEG化多糖脂酸盐 (L-PEGS) 融入酸水泥 (CPC) 中,开发一种新的骨水泥.
- 评估风湿性注射性,机械强度 (压力强度,耐疲劳性) 和微型架构 (多孔性).
- 通过体外和体内研究来评估水化动力学,可降解性和骨质生成潜力.
主要成果:
- 在1000个循环中,L-PEGS/CPC复合物显示压力强度增加了16.7倍,持续疲劳耐力增加了1000倍.
- L-PEGS促进了与CPC水化同步的自我强化交联反应,加速了动力学.
- 现场二氧化碳生成创造了一个多孔的微架构,增强了可降解性和营养交换,促进了新的骨生长.
- 与临床材料相比,体外和体内研究证实了优越的骨质生成.
结论:
- 新的L-PEGS/CPC骨提供了骨修复的综合解决方案,克服了现有材料的局限性.
- 水分驱动的,水泥的自我强化性质提高了注射性,机械完整性和生物性能.
- 这种先进的骨水泥对骨增强和再生的临床应用具有重大前景.
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