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首页> 外文期刊>International journal of biomedical nanoscience and nanotechnology >In vitro synthesis of antimicrobial silver nanoparticles by mangroves, saltmarshes and plants of coastal origin.
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In vitro synthesis of antimicrobial silver nanoparticles by mangroves, saltmarshes and plants of coastal origin.

机译：红树林，盐沼和沿海植物在体外合成抗菌银纳米粒子。

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摘要

A total of 13 leaf extracts of coastal plants were used for the synthesis of silver nanoparticles and to test the antimicrobial potential of nanoparticles. The highest amount of nanoparticles was obtained by Sesuvium portulacastrum followed by Prosopis chilensis, Hibiscus rosasinensis and Clerodendrum inerme. The synthesised nanoparticles were spherical with variable size ranging from 5 to 20 ran, as evident by transmission electron microscopy. The synthesis of silver nanoparticles was confirmed with X-ray diffraction spectrum. Fourier transform infrared spectroscopy identified the presence of amide I, II and 111, aromatic rings, geminal methyls and ether linkages indicating the presence of biomolecules responsible for stabilisation of the silver nanoparticles. Protein bands with molecular weight in a range of 35 to 100 kDa were detected. The nanoparticles inhibited clinical strains of bacteria and fungi with more distinct antifungal activity, which was enhanced when polyvinyl alcohol was added as a stabilising agent.
机译：总共使用13种沿海植物的叶提取物来合成银纳米颗粒并测试纳米颗粒的抗菌潜力。最高数量的纳米颗粒是由东南葡萄球菌获得的，其次是智利的Prosopis chilensis，芙蓉的芙蓉花（Robiscus rosasinensis）和鸡冠花菌（Clerodendrum inerme）。合成的纳米颗粒是球形的，具有从5到20nm的可变尺寸，如通过透射电子显微镜所证实的。用X射线衍射光谱证实了银纳米颗粒的合成。傅里叶变换红外光谱法确定了酰胺I，II和111，芳香环，双甲基和醚键的存在，表明存在负责稳定银纳米颗粒的生物分子。检测到分子量在35至100 kDa范围内的蛋白条带。纳米颗粒抑制细菌和真菌的临床菌株，具有更明显的抗真菌活性，当添加聚乙烯醇作为稳定剂时，纳米菌株会增强抗真菌活性。

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