基酸功能化的Ag纳米颗粒及其抗菌活性的热水合成
Shengkai Liu1,2,3,4, Hongji Wang1,2,3,4, Siqi He1,2,3,4
1Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China.
概括
本研究提出了使用酸 (CGA) 作为减少和稳定剂的酸功能化银纳米粒子 (CGA-AgNPs) 的绿色合成. 由此产生的CGA-AgNP显示出对常见病原体具有显著的抗菌活性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物化学 生物化学
背景情况:
- 银纳米粒子 (AgNPs) 具有广泛的抗微生物特性.
- 为功能化纳米粒子开发绿色和简单的合成方法对于它们的应用至关重要.
- 酸 (CGA) 是一种具有潜在生物活性的天然化合物.
研究的目的:
- 通过一种简单而绿色的方法合成酸功能化银纳米粒子 (CGA-AgNPs).
- 为了优化CGA-AgNPs的合成条件.
- 评估合成的CGA-AgNPs的抗菌活性.
主要方法:
- 使用CGA作为降解剂和稳定剂合成CGA-AgNP.
- 优化合成参数,包括反应剂比,pH,温度和反应时间.
- 使用UV-Vis,XRD,FTIR,XPS和TEM进行表征.
- 使用抑制区和MIC/MBC测定,对 *Candida albicans*, *Acinetobacter baumannii* 和 *Staphylococcus aureus* 的抗菌活性进行评估.
主要成果:
- 成功合成了平均直径为36.70±0.65nm的球形CGA-AgNP.
- FTIR和XPS证实了AgNP与CGA的成功功能化.
- 优化的CGA-AgNPs对*C. albicans*,*A. baumannii*和*S. aureus*表现出显著的抗菌活性.
- MIC值为36.95±0.22μg/mL,而MBC值为73.90±0.22μg/mL. 这两种情况均存在.
结论:
- 为合成CGA-AgNPs建立了一种简单而绿色的方法.
- 合成的CGA-AgNP具有出色的抗菌性能.
- 这项研究为开发基于功能化银纳米粒子的新型抗菌剂提供了有希望的方法.
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