基于泰坦酸纳米管的光催化纳米复合材料装饰有等离子纳米颗粒,可增强广谱抗菌活性
Mostafa Fytory1,2, Shaimaa A Khalid1,3, Ayman H Zaki2
1Department of Chemistry School of Sciences & Engineering, The American University in Cairo, AUC Avenue, New Cairo 11835, Egypt.
ACS applied bio materials
|October 1, 2024
概括
酸盐纳米管上的银和金纳米颗粒显示出强大的抗菌活性. 这些Ag/Au-titanate纳米管复合材料为在黑暗和光明条件下开发新型抗菌材料提供了有前途的战略.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 抗菌研究 抗菌研究
背景情况:
- 微生物感染是一个全球性的健康挑战,推动了新的抗微生物战略的需求.
- 产生反应性氧物种 (ROS) 的光催化材料为对抗微生物提供了有前途的方法.
研究的目的:
- 为了合成和表征银 (Ag),金 (Au) 和Ag/Au修饰的酸纳米管 (TNTs).
- 在黑暗和阳光条件下评估这些修改后的TNTs对常见细菌菌株的抗菌疗效.
主要方法:
- 通过可扩展的热水方法合成的酸纳米管.
- 通过成本效益高的离子交换过程实现的Ag,Au和Ag/Au的修饰.
- 使用XRD,FT-IR,HRTEM和DLS进行表征;针对*黄金葡萄球菌*,*大肠杆菌*和*假菌*进行抗菌检测.
主要成果:
- 在金属离子修改后,TNTs的管状结构得到了维护.
- Ag/Au-TNTs表现出显著的黑暗抗菌活性,超过单独的Ag-TNTs和Au-TNTs.
- 在阳光下,Ag/Au-TNTs表现出对*P. aeruginosa*和*E. coli*的完全细菌减少 (日志减少∼9).
结论:
- Ag和Au纳米颗粒对TNT的协同作用提供了增强的杀菌活性.
- Ag/Au-TNTs显示出开发可见光响应的抗微生物表面的潜力.
- 这项研究突出了有效打击微生物威胁的新材料.
关键词:
在这里,我们看到了Ag Ag Ag Ag.在这里,你会看到很多东西.在FT-IR中,使用的是FT-IR.时间 HRTEM HRTEM这就是ROSOS ROS.XRD XRD 在线观看它们具有抗菌性活动.纳米颗粒是一种纳米粒子.泰坦酸纳米管 (TNTs) 的使用更多相关视频
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