可注射的阴离子双交联水凝通过持续的抗菌活性促进骨再生和修复
Yimeng Xie1, Yuedi Yu2, Zhengwei Cai3
1Department of Stomatology, Zhongshan Hospital of Fudan University, Shanghai, China.
Materials today. Bio
|November 24, 2025
概括
一种新的双交联凝提供抗菌来对抗牙周炎相关的骨缺陷. 这种可注射物质显示持续释放并促进骨再生,为慢性口腔感染提供了有前途的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 口腔微生物学 口腔微生物学
背景情况:
- 传统的抗微生物药物对口腔病原体的有效性较低,原因是牙斑和抗生素耐药性.
- 慢性牙周炎感染阻碍了骨的修复,对牙周炎引起的骨缺陷提出了挑战.
研究的目的:
- 开发一种可注射,双交叉链接的凝,用于持续释放抗微生物.
- 在牙周炎模型中评估水凝在促进骨再生方面的有效性.
主要方法:
- 制造一个可注射的阴离子光聚合双交联O-HAMA/GelMA/PLL水凝.
- 对抗微生物e-PLL持续释放的评估 (长达14天).
- 使用老鼠头骨缺陷和牙周炎模型评估体内骨修复.
主要成果:
- 双交叉连接的水凝表现出优越的可控释放性能和增强的机械强度.
- 活体研究表明,水凝通过持续的抗菌活性改善了炎症微环境.
- 在接受治疗的模型中观察到骨组织再生的显著促进.
结论:
- 在O-HAMA/GelMA/PLL水凝提供强大的抗菌性能和生物相容性.
- 这种双交叉连接的水凝显示出修复牙周炎引起的膜骨缺陷的巨大潜力.
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