通过Bacillus licheniformis介导的生物修饰,增强了万科米辛/氧化/奇托桑纳米复合物的抗菌疗效
Mohamed I Abou-Dobara1, Zakaria A M Baka1, Shimaa M El-Salamony1
1Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, 34517, Egypt.
Discover nano
|December 7, 2025
概括
一种新型的氧化物/奇托桑纳米复合物 (VA/ZnO/CS) 显示出对抗药物耐药细菌和真菌的增强抗菌活性. 这种绿色合成的生物材料为对抗微生物感染提供了有效的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 微生物学 微生物学
背景情况:
- 抗菌素耐药性 (AMR) 是一个日益增长的全球健康威胁,需要创新的治疗策略.
- 耐药的微生物,如MRSA,大肠杆菌,肺炎和白肠杆菌,需要新的治疗方法.
- 现有的抗微生物药物经常面临抗药性,突出显示需要提高疗效.
研究的目的:
- 开发和描述一种新型的氧化物/奇托桑纳米复合物 (VA/ZnO/CS).
- 评估VA/ZnO/CS对抗耐药微生物组的增强抗菌疗效.
- 探索这个纳米复合材料作为协同治疗剂的潜力.
主要方法:
- 氧化物纳米粒子 (ZnO NPs) 的生物合成使用Bacillus licheniformis.
- 绿色化学合成的VA/ZnO/CS纳米复合材料.
- 使用UV-Vis光谱,XRD,FTIR和TEM进行表征.
- 通过阿加井扩散,MIC和MMC测定进行抗菌活性评估.
主要成果:
- VA/ZnO/CS粒子是球形的,平均大小为78 nm.
- 这种纳米复合材料的抗微生物活性明显高于万科米辛和可纳.
- 与传统药物 (25-30μg/ml) 相比,在较低度 (5-15μg/ml) 达到完整的生物杀伤作用.
- TEM图像揭示了用VA/ZnO/CS.治疗的C. albicans细胞壁破坏和形.
结论:
- 绿色合成的VA/ZnO/CS纳米复合物表现出强大的协同抗菌活性.
- 这种生物材料有效地增强了万科米辛对抗耐药微生物的疗效.
- VA/ZnO/CS为治疗微生物感染提供了一个有前途的治疗候选药物.
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