抗菌效果的托芬协调银纳米颗粒对大肠杆菌:细菌细胞死亡的光谱和显微镜评估
Rafaqat Ali Khan1, Shahzad Anwar2, Hina Ali1
1National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Islamabad, 45650, Pakistan.
Journal of fluorescence
|October 15, 2024
概括
化学合成的托协调银纳米颗粒 (Ag-TrpNPs) 显示出对大肠杆菌的强烈抗菌活性. 光谱学有效量化了细菌细胞死亡,证明了Ag-TrpNPs.
科学领域:
- 纳米技术 纳米技术
- 生物材料是一种生物材料.
- 频谱学是一种光谱学.
背景情况:
- 银纳米粒子 (Ag-NPs) 具有显著的抗菌特性,但引起了毒性问题.
- 协调Ag-NP与Tryptophan等生物相容分子对于安全应用至关重要.
- 功能光纳米材料为生物评估提供了先进的工具.
研究的目的:
- 为了化学合成托芬协调银纳米粒子 (Ag-TrpNPs).
- 用光光谱学评估Ag-TrpNPs的抗菌潜力.
- 研究Ag-TrpNPs与细菌之间的相互作用机制.
主要方法:
- Ag-TrpNPs的化学合成.
- 光学表征:UV-Vis,DLS,SEM,FTIR,光光谱学,共聚焦显微镜.
- 抗菌评估:阿加井扩散试验和E. coli的光光谱学.
主要成果:
- 合成的Ag-TrpNP具有球形形态和~100nm水力动力学尺寸.
- 观察到显著的抑制区域,表明剂量依赖的抗菌疗效.
- 光谱学证实了细菌细胞死亡,SEM显示了细胞壁的分解.
结论:
- Ag-TrpNPs对大肠杆菌具有有效的抗菌活性.
- 光谱法是量化抗菌作用的可行方法.
- Ag-TrpNPs通过细胞壁损伤诱导细菌死亡.
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