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利用覆盖的银纳米颗粒来对抗多抗药性Pseudomonas aeruginosa

Salma Banu A¹, Jaya Lakshmi S S², Leela K V¹

¹Department of Microbiology, SRM Medical College Hospital and Research Centre, Faculty of Medicine and Health Sciences, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu, Tamil Nadu, India.

Applied microbiology and biotechnology

|January 10, 2026

概括

涂有的银纳米颗粒显示出强大的抗菌作用,对抗多药耐药性Pseudomonas aeruginosa. 这些纳米粒子增强了抗生素的有效性,如美罗烯和ceftazidime-avibactam,提供了新的治疗策略.

科学领域:

纳米技术纳米技术
微生物学微生物学
传染性疾病传染性疾病

背景情况:

复杂耐药性 (MDR) Pseudomonas aeruginosa 由于抗生素耐药性而构成重大临床威胁.
传统的抗生素通常对MDR菌株无效,需要新的治疗方法.

研究的目的:

为了研究涂银纳米粒子 (SiO2@AgNPs) 对MDR P. aeruginosa的抗菌潜力.
探索SiO2@AgNPs与已知抗生素之间的协同作用.

主要方法:

从临床样本中分离和识别P. aeruginosa.
使用TEM,FTIR和XRD进行SiO2@AgNP的表征.
通过微乳液稀释和棋盘测试来评估抗菌活性.

主要成果:

在100个P. aeruginosa分离物中,有13个被确定为MDR.
SiO2@AgNPs表现出有效的抗菌活性,MIC为500μg/mL.
观察到与美罗胺和塞夫塔齐迪姆-阿维巴克坦 (FICI=0.375) 的协同效应,以及与西普罗夫洛克萨 (FICI=0.625-1.0625) 的部分协同效应.

结论:

SiO2@AgNPs对MDR P. aeruginosa具有显著的抗菌活性.
用SiO2@AgNPs和特定抗生素进行组合治疗可以提高治疗疗效.
这些发现表明了对抗抗生素耐药细菌感染的潜在新策略.

关键词:

具有抗菌活性,具有抗菌活性.抗生素协同作用抗生素协同作用最低抑制度 (MIC) 是指最小的抑制度.多种药物耐药性 (MDR)涂有的银纳米粒子 (SiO2@AgNP)

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