为动态氧化纳米颗粒提供类似三明治的涂层:在氧化微环境中增强植入物的骨质整合
Ya-Nan Yao1,2, Ya-Wen Zhu1, Yu-Wen Wei1
1Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Jiangsu Province Key Laboratory of Oral Diseases, Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, 210029, China.
Advanced healthcare materials
|October 21, 2025
概括
这项研究开发了涂有氧化纳米粒子 (CeNPs) 的新型植入物,以对抗氧化应激并改善骨愈合. 这些植入物增强骨质整合和骨质母细胞分化,为更好的牙科植入物结果提供了一个有前途的策略.
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.
- 纳米技术纳米技术
背景情况:
- 与植入物相关的过度反应性氧物种 (ROS) 可以导致线粒体功能障碍和植入物失败.
- 病理状况加剧了植入物周围的氧化应激,损害了骨质整合.
研究的目的:
- 设计和评估使用氧化纳米粒子 (CeNPs) 功能化的植入物,以改善骨质整合.
- 在病理条件下,在植入物周围减轻氧化应激和线粒体功能障碍.
主要方法:
- 使用HA-PBA和CCS多电解质使用CeNPs的植入物的功能化.
- 在体外评估骨质母细胞分化和ROS清理.
- 在体内评估使用糖尿病大鼠的股骨植入模型.
主要成果:
- Ti-HAPBA/CCS-CeNPs植入物刺激了骨质母细胞的分化,并减少了细胞内ROS.
- 植入物恢复了线粒体膜的潜力,并降低了DRP1的表达.
- 与Ti-SLA植入物相比,在糖尿病老鼠中观察到显著增强的骨改造和骨质整合.
结论:
- Ti-HAPBA/CCS-CeNPs植入物在生理和病理条件下显示出治疗潜力.
- 这种基于生物聚合物的策略为改善牙科植入物结果提供了一种新的方法.
- 按需释放CeNPs有效调节当地微环境.
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