固态定制的银纳米复合物从奇托:合成,抗菌评估和分子对接
Rania Abdel-Wahed1, Bahaa A Hemdan2, Heba Bayoumi3
1Chemistry Department, Faculty of Science, Menoufia University, Egypt.
International journal of biological macromolecules
|March 8, 2025
概括
新的基托桑化合物与α-aminophosphonate和银纳米颗粒显示增强了对细菌和真菌的抗菌活性. 这些新材料具有强大的抗菌膜特性,可用于潜在的治疗应用.
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.
- 有机化学 有机化学
背景情况:
- 奇托是一种具有固有的抗微生物特性的生物相容聚合物.
- 开发具有增强疗效的新型基托衍生物对于对抗微生物感染至关重要.
- 银纳米粒子以其广泛的抗菌活性而闻名.
研究的目的:
- 合成和描述新型的α-aminophosphonate-chitosan衍生物及其银纳米复合物.
- 评估这些化合物对各种细菌和真菌菌株的抗菌疗效.
- 为了研究优化抗微生物机制的结构-活性关系.
主要方法:
- 合成α-氨基酸盐-色素 (α-AP-Cs) 衍生物,使用色素,三酸和碳酸-甲交叉连接剂.
- 通过固态方法制备α-AP-Cs银纳米复合材料 (Ag0NPs).
- 使用CHNS/P/O,FT-IR,XRD,TEM,EDX,XPS和UV可见光谱学进行了表征.
- 抗微生物评估包括MIC,剂量杀死试验,生长动力学,蛋白质泄漏和抗菌膜活性.
主要成果:
- 成功合成和表征了三种α-AP-Cs衍生物 (CU,CT,CSC) 及其相应的Ag0NP.
- 光谱和元素分析证实了化和交叉链接.
- XPS和XRD证实了具有FCC结构的金属银;UV-Vis显示高峰在399nm.
- TEM揭示了半球形Ag0NP,平均尺寸为30.4nm.
- 增强抗微生物疗效,对抗突变性菌株,Pseudomonas aeruginosa,Candida albicans和Rhizopus oryzae,特别是对抗生物膜.
结论:
- 合成的α-aminophosphonate-chitosan-silver纳米复合物显示出与裸体chitosan相比显著改善的抗微生物和抗生素膜活性.
- α-氨基酸功能化和银纳米颗粒的组合增强了抗菌作用.
- 这些新型材料对开发先进的抗微生物剂和涂料充满希望.
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