合成和分子对接研究α-aminophosphonates作为潜在的多向抗菌剂
Rana R Neiber1, Nadia A Samak2, Jianmin Xing3
1Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 100190 Beijing, China; College of Chemical Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Road, 100049 Beijing, China; School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China.
Journal of hazardous materials
|December 16, 2023
概括
新的α-氨基酸盐 (α-Amps) 能够对抗水管道中的细菌生物膜. 化合物[B]有效杀死细菌,并通过增加活性氧物种 (ROS) 来破坏生物膜.
科学领域:
- 绿色化学和材料科学 绿色化学和材料科学
- 微生物学和生物技术 微生物学和生物技术
- 水处理和公共卫生问题
背景情况:
- 水管道中的细菌生物膜带来了重大挑战,需要新的抗菌剂.
- 细胞外聚合物物质 (EPS) 是细菌生物膜的关键组成部分,有助于它们的弹性.
- 离子液体作为化学合成中的催化剂提供了一种可持续的方法.
研究的目的:
- 使用绿色的一合成方法开发新型α-氨基酸盐 (α-Amps).
- 评估合成的α-Amps对常见的水性病原体的抗菌和抗生物膜功效.
- 调查作用机制,包括ROS生成和EPS中断.
主要方法:
- 绿色的一合成α-氨基酸盐 (α-Amps) 被离子液催化.
- 确定针对细菌细菌,大肠杆菌和 Pseudomonas aeruginosa 的最小抑制度 (MIC).
- 评估生物膜根除,反应性氧物种 (ROS) 生成和EPS降解.
- 分子对接研究,以预测与细菌蛋白的相互作用.
主要成果:
- 合成的α-Amps,特别是类似物[B],对大肠杆菌,P. aeruginosa和B. subtilis表现出强大的抗菌活性.
- 化合物[B]在低度下显著有效地消除成熟的细菌生物膜.
- 观察到ROS生成和随后的细菌细胞破坏,其中化合物[B]显示了最高的ROS水平和有效的EPS破坏.
- 对接研究显示,化合物[B]与关键细菌蛋白具有强烈的结合亲和力.
结论:
- α-氨基酸盐 (α-Amps) 是开发新型抗菌和抗生物膜剂的有希望的候选物.
- 合成的化合物,特别是[B],通过防止生物膜的形成,显示出在保持清洁水供应方面使用的潜力.
- 该机制涉及ROS诱导和细菌细胞外聚合物质 (EPS) 的直接破坏.
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