通过由ZIF-8/PLA纳米纤维形成的生物矿物化结晶来加速伤口愈合,增强了复血管化和减少炎症
Xiangsheng Wang1, Xueer Zhang2,3, Bingqian Wang4
1Department of Plastic and Aesthetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China.
Frontiers in bioengineering and biotechnology
|September 22, 2025
概括
矿化齐奥利特伊米达酸框架-8 (ZIF-8) 增强的聚乳酸 (PLA) 纳米纤维促进伤口愈合. 这种仿生方法通过刺激血管生长和减少炎症来改善皮肤再生.
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:
- 聚乳酸 (PLA) 纳米纤维由于其生物降解性和生物相容性,对伤口敷料具有前景.
- 然而,PLA纳米纤维缺乏有效皮肤再生的必要生物功能,例如促进血管生成和调节炎症.
- 酸胺酸框架-8 (ZIF-8) 可以诱导生物模拟矿化,以提高材料的性能.
研究的目的:
- 开发增强的聚乳酸 (PLA) 纳米纤维,以改善伤口愈合的生物活性.
- 调查生物仿真矿化潜力,使用酸伊米达酸框架-8 (ZIF-8) 来功能化PLA纳米纤维.
- 评估矿化PLA纳米纤维在促进皮肤再生方面的有效性.
主要方法:
- PLA纳米纤维是使用电制成的.
- 纳米纤维被浸入模拟体液 (SBF) 中,以诱导ZIF-8的仿生矿化,从而产生矿化ZIF-8/PLA (mZIF-8/PLA) 纳米纤维.
- 物理化学,机械,离子释放和生物相容性属性在体外进行了评估.
- 伤口愈合能力在体内使用老鼠切除性伤口模型进行了评估.
主要成果:
- 在PLA纳米纤维上成功形成了由,和组成的类似酸的水晶.
- 矿化增强了纳米纤维的表面粗性,机械性能和水性.
- mZIF-8/PLA纳米纤维促进了纤维细胞的增殖,并显示出更好的生物活性.
- 从矿化晶体中释放的和离子促进了血管生成,增强了细胞外基质沉积,并减少了炎症透.
结论:
- 使用ZIF-8的PLA纳米纤维的生物仿真矿化有效地增强了它们用于伤口愈合的生物功能.
- 矿化纳米纤维通过刺激血管生成和调节炎症反应来促进皮肤再生.
- 这项研究提出了一种新的策略,用于开发具有增强治疗性能的先进伤口包裹材料.
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