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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Silver nanoparticles toxicity against airborne strains of Staphylococcus spp.
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Silver nanoparticles toxicity against airborne strains of Staphylococcus spp.

机译：银纳米颗粒对金黄色葡萄球菌空中传播菌株的毒性。

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摘要

The aim of this study was to explore the toxicity of silver nanoparticles (AgNPs) synthesized by chemical reduction method assessment with regard to airborne strains of Staphylococcus spp.The first step of the experiment was the preparation of silver nanoparticle suspension. The suspension was obtained by a fast and simple chemical method involving the reduction of silver ions through a reducing factor in the presence of the suitable stabilizer required to prevent the aggregation. In the second stage, varied instrumental techniques were used for the analysis and characterization of the obtained nanostructures. Third, the bacteria of the Staphylococcus genus were isolated from the air under stable conditions with 47 sports and recreational horses, relatively. Next, isolated strains were identified using biochemical and spectrophotometric methods. The final step was the evaluation of the Staphylococcus genus sensitivity to nanosilver using the disk diffusion test. It has been proven that prepared silver nanoparticles exhibit strong antibacterial properties. The minimum inhibitory concentration for tested isolates was 30g/mL. It has been found that the sensitivity of Staphylococcus spp. isolated from six identified species differs considerably. The size distribution of bacterial growth inhibition zones indicates that resistance to various nanosilver concentrations is an individual strain feature, and has no connection with belonging to a specific species.
机译：本研究的目的是探讨化学还原法评估合成的银纳米颗粒（AgNPs）对金黄色葡萄球菌的空气传播菌株的毒性。实验的第一步是制备银纳米颗粒悬浮液。悬浮液是通过一种快速简单的化学方法获得的，该方法包括在需要防止聚集的合适稳定剂存在下，通过还原因子还原银离子。在第二阶段，使用各种仪器技术对获得的纳米结构进行分析和表征。第三，相对稳定地从空气中分离出葡萄球菌属细菌与47匹运动和休闲马。接下来，使用生化和分光光度法鉴定分离的菌株。最后一步是使用圆盘扩散测试评估葡萄球菌属对纳米银的敏感性。已经证明，制备的银纳米颗粒显示出强的抗菌性能。被测分离物的最低抑菌浓度为30g / mL。已经发现葡萄球菌属的敏感性。从六个已识别物种中分离出来的差异很大。细菌生长抑制区的大小分布表明，对各种纳米银浓度的抗性是单个菌株的特征，与属于特定物种无关。

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