用生物质碳点修改的抗菌膠導管的建造及其特性
Jing Liu1, Ziyang Shao1, Liyuan Liu2
1College of Textile Engineering, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China.
Biomedical materials (Bristol, England)
|December 13, 2024
概括
用生物质碳点 (CD) 修改的新型 (SR) 导管表现出强大的抗菌特性,对常见的病原体有很强的抗菌作用. 这些新型SR/CD导管证明了安全性并降低了感染风险,提供了一个有前途的临床解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 传染病研究 传染病研究
背景情况:
- 膠 (SR) 導管易受細菌殖民,導致導管相關的尿道感染 (CAUTIs).
- 为医疗器械开发有效的抗微生物策略对于对抗医疗保健相关感染至关重要.
研究的目的:
- 通过结合生物质碳点 (CD) 来制造抗菌 (SR) 导管.
- 评估修改后的SR/CDs导管的抗菌疗效,生物相容性和减少感染的潜力.
主要方法:
- 用生物质碳点 (CD) 批量修改SR导管.
- 使用盘子计数方法对大肠杆菌和金黄色杆菌进行评估的抗菌活性.
- 细胞毒性测试和动物实验以评估生物相容性和感染调节.
主要成果:
- SR/CDs导管显示出显著的抗微生物特性,最小抑制度 (MIC) 为20 mg/mL.
- 该机制涉及CDs通过细菌膜破坏诱导反应性氧物种 (ROS) 生产.
- *体内*研究证实了良好的生物安全性,并通过调节炎症因素降低了CAUTI风险.
结论:
- 生物质碳点修改SR导管为预防导管相关感染提供了一个有希望的解决方案.
- 使用挤出机的简单生产过程有助于潜在的临床转化.
- SR/CDs导管是提高医疗器械安全性和有效性的新方法.
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