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银和抗菌聚合物纳米复合物用于增强杀菌效应

Diana Pereira¹, Susana Ferreira¹, Gloria Belén Ramírez-Rodríguez²

¹CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal.

International journal of molecular sciences

|January 27, 2024

概括

这项研究探讨了与抗微生物聚合物 (AP) 结合的银纳米粒子 (Ag-NPs),以对抗耐药微生物. Ag-NP + AP纳米复合体显示出增强的抗菌活性,特别是针对真菌和生物膜.

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) 构成了全球健康的重大威胁.
银纳米粒子 (Ag-NPs) 和抗微生物聚合物 (APs) 显示为传统抗微生物药物的替代品.
将Ag-NP与AP结合使用可能会增强它们对抗耐药微生物的有效性.

研究的目的:

研究Ag-NPs的抗菌性质,当它们与各种AP (奇托,聚-L-lysine,e-poly-L-lysine,多巴胺) 复合时.
评估Ag-NP + AP纳米复合物的潜在协同抗菌作用.
评估这些纳米复合体对细菌和真菌的有效性,包括它们消除生物膜的能力.

主要方法:

使用UV-Vis光谱,泽塔潜力,TEM和FTIR合成和描述Ag-NP + AP纳米复合物.
在体外对黄金葡萄球菌 (格拉姆阳性),大肠杆菌 (格拉姆阴性) 和Candida albicans (真菌) 的抗菌检测.
对抗S. aureus和C. albicans.生物膜根除能力的评估.

主要成果:

证实了Ag-NP与选定的APs的成功结合.
Ag-NP + AP纳米复合体显示出抗微生物活性的增强,特别是针对Candida albicans.
特定的纳米复合体显示出显著的生物膜根除:Ag-NPs + 多巴胺对抗S. aureus和Ag-NPs + 奇托对抗C. albicans.

结论:

与单独的Ag-NP相比,Ag-NP + AP纳米复合体提供了增强的抗菌疗效.
这些新型配方显示出开发成抗微生物感染的治疗剂的潜力.
需要进一步的研究来探索它们的临床适用性.

关键词:

抗微生物作用的抗微生物作用.细菌细菌细菌是一种细菌.基多酸盐的使用方法多巴胺是多巴胺的一种.埃普西隆-多利-L-氨酸是什么菌是一种真菌.聚-L-氨酸是一种聚氨酸.银纳米颗粒的使用方法

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