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首页> 外文期刊>Nanobiotechnology, IET >Gundelia tournefortii L.: a natural source for the green synthesis of silver nanoparticles
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Gundelia tournefortii L.: a natural source for the green synthesis of silver nanoparticles

机译：Gundelia tournefortii L .：绿色合成银纳米粒子的天然来源

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摘要

The present study focused on the synthesis of spherical silver nanoparticles (Ag NPs) using L. aerial part extract. The plant extract could reduce silver ions into Ag NPs. To identify the compounds responsible for the reduction of silver ions, functional groups present in plant extract were investigated by Fourier transform infrared spectroscopy. Techniques used to characterise synthesised nanoparticles included field emission scanning electron microscopy, X-ray diffraction and transmission electron microscopy. UV-visible spectrophotometer showed the absorbance peak in the range of 400-450 nm. The Ag NPs showed antibacterial activities against both gram positive ( and ) and gram negative ( and ) microorganisms. The results confirmed that this protocol was simple, rapid, eco-friendly, low-priced and non-toxic; therefore, it could be used as an alternative to conventional physical/chemical methods. Only 5 min were required for the conversion of silver ions into Ag NPs at room temperature, without the involvement of any hazardous chemical.
机译：本研究的重点是使用气生利什曼原虫提取物合成球形银纳米颗粒（Ag NPs）。植物提取物可以将银离子还原为Ag NPs。为了鉴定负责还原银离子的化合物，通过傅立叶变换红外光谱法研究了植物提取物中存在的官能团。用于表征合成纳米颗粒的技术包括场发射扫描电子显微镜，X射线衍射和透射电子显微镜。紫外可见分光光度计显示在400-450 nm范围内的吸收峰。 Ag NPs对革兰氏阳性（和）和革兰氏阴性（和）微生物均显示出抗菌活性。结果证实该方案简单，快速，生态友好，价格低廉且无毒。因此，它可以用作常规物理/化学方法的替代方法。在室温下，仅需5分钟即可将银离子转化为Ag NP，而无需任何有害化学物质的参与。

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