纳米复合材料:从乳酸细菌中获得的银纳米颗粒和细菌素,用于对抗耐药性大肠杆菌和金黄色葡萄球菌的抗药性
Mayra Eleonora Beltrán Pineda1, Daniela Fernanda Valencia Sánchez2, Paula Andrea Caicedo Caycedo2
1Grupo de Investigación Gestión Ambiental-Universidad de Boyacá, Grupo de Investigación Biología Ambiental, Universidad Pedagógica y Tecnológica de Colombia, Grupo de Investigación en Macromoléculas. Universidad Nacional de Colombia, Tunja, Colombia.
World journal of microbiology & biotechnology
|October 2, 2024
概括
新的生物技术抗微生物剂,如银纳米粒子 (AgNPs) 和细菌素,对抗药物耐药细菌显示出希望. 将它们结合到纳米结合物中,可能会提高对抗耐药性大肠杆菌和金黄色葡萄球菌的疗效.
科学领域:
- 生物技术是生物技术.
- 微生物学 微生物学
- 纳米技术 纳米技术
背景情况:
- 像大肠杆菌和金黄色葡萄球菌这样的细菌的抗生素耐药性是一个关键的全球健康问题.
- 迫切需要新型,有效和安全的抗微生物药物来对抗耐药性病原体.
- 生物技术方法提供了替代方案,包括银纳米粒子 (AgNPs) 和细菌素.
研究的目的:
- 审查大肠杆菌和金黄色葡萄球菌的抗生素耐药性.
- 探索银纳米粒子 (AgNPs) 和细菌素作为抗菌剂的特性.
- 检查由AgNPs和细菌素形成的纳米结合物的协同作用对抗多药耐药细菌.
主要方法:
- 关于抗生素耐药机制的科学文献的综述.
- 分析银纳米粒子 (AgNPs) 的特性和抗菌机制.
- 研究细菌素的产生和作用,特别是乳酸细菌 (LAB) 的作用.
- 对纳米结合剂的评估,这些纳米结合剂结合了AgNP和细菌素,以增强抗菌活性.
主要成果:
- 银纳米粒子 (AgNPs) 通过多种机制表现出广泛的抗菌活性,包括反应性氧物种的产生和细胞壁的破坏.
- 细菌素,是通过核糖体合成的,通过形成毛孔来向细菌细胞膜.
- 限制包括AgNP聚合和潜在的细胞毒性,以及细菌素的狭窄光谱,高剂量要求和蛋白酶敏感性.
- AgNPs和细菌素的纳米结合物表现出协同效应,克服了个体剂的限制.
结论:
- 银纳米粒子 (AgNPs) 和细菌素代表了下一代有希望的抗菌剂.
- AgNPs和细菌素的纳米结合提供了一种协同策略,用于对抗诸如大肠杆菌和金黄色葡萄球菌 (Staphylococcus aureus) 等多耐药细菌.
- 对纳米结合物的进一步研究可以导致对细菌感染的更有效的治疗方法.
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