协同抗菌表面具有液体排斥性和增强的光热杀菌活性
Li-Hui Zhang1, Jia-Lei Yang2, Yun-Yun Song2
1School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, People's Republic of China.
Langmuir : the ACS journal of surfaces and colloids
|June 7, 2023
概括
这项研究引入了一种强大的超水表面,可以驱逐细菌,并使用光热近红外 (NIR) 辐射来杀死附着的微生物,为表面提供先进的抗菌保护.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 表面化学 表面化学
背景情况:
- 生物医疗设备和食品包装表面的微生物污染是一个重大的健康问题.
- 超水表面提供细菌粘附阻力,但缺乏耐用性.
- 光热杀菌表面可以杀死附着的细菌,补充了超水性质.
研究的目的:
- 开发一种强大的抗菌表面,具有协同作用的超和光热杀菌特性.
- 评估开发的表面在防止细菌粘附和消除附着细菌方面的有效性.
主要方法:
- 使用铜网面罩,制造具有均圆阵列的超疏水表面.
- 使用细菌悬浮剂对细菌粘附排斥的评估.
- 在近红外 (NIR) 辐射暴露时对光热杀菌活性的评估.
- 在各种表面上测试自我清洁性能和抗菌效果.
主要成果:
- 制造的表面表现出极好的液体排斥性,在10秒内排斥95%的细菌,在1小时后排斥57%.
- 光热石墨烯在NIR辐射下有效地消除了大多数附着的细菌.
- 表面在平面和不平面上实现了大约99.9%的细菌粘附阻力.
- 灭活的细菌很容易通过自清洗洗去除.
结论:
- 开发的表面结合了超水性细菌粘附阻力和光热杀菌活性,以有效控制微生物.
- 这种方法为在各种应用中创建强大的抗菌表面以对抗微生物感染提供了有希望的进步.
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