pH-触发了纳米纤维-水凝混合带的抗生素释放,用于感染的伤口愈合
Ruohong Yu1,2, Fanying Zeng3, Zhenyu Xiang1
1College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China. jiaoj.shang@scu.edu.cn.
Journal of materials chemistry. B
|January 22, 2026
概括
这项研究开发了一种新的基于凝的水凝伤口包裹,使用pH响应的纳米纤维来持续释放抗生素. 在临床前的模型中,先进的带加速了50%的伤口愈合,并减少了炎症.
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.
- 药物输送系统 药物输送系统
背景情况:
- 伤口带对于愈合至关重要,作为障碍物和指导组织重塑.
- 目前的包裹往往缺乏有效的药物释放机制,需要改进设计.
- 加快伤口愈合需要创新的材料来管理动态的伤口微环境.
研究的目的:
- 开发一种机械坚固,生物相容的水凝伤口带.
- 整合pH响应的纳米纤维,以有针对性和持续的抗生素释放.
- 创造一种可以加速伤口愈合并调节炎症反应的包裹.
主要方法:
- 通过电制造含有氨基素的纳米纤维装载的基于凝的水凝.
- 利用希夫基反应来增强水凝的机械性能.
- 在小鼠模型中评估pH触发的药物释放动力学和体内伤口愈合疗效.
主要成果:
- 复合带显示了增强的机械强度和生物相容性.
- 响应pH的纳米纤维在酸性条件下显示触发了阿莫西西林的释放.
- 包裹显示双阶段释放,延长药物释放时间超过10倍.
- 在体内研究显示愈合加速 (≥50%的愈合时间减少),抑制炎症,促进原沉积.
结论:
- 开发了一种具有可调节药物释放的多功能,生物响应性伤口带.
- 混合水凝-纳米纤维系统为先进的伤口管理提供了一个有前途的战略.
- 这种方法为优化复杂伤口环境中愈合提供了切实可行的解决方案.
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