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首页> 外文期刊>Applied Nanoscience >Biosynthesis of silver nanoparticles using aqueous leaf extract of Thevetia peruviana Juss and its antimicrobial activities
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Biosynthesis of silver nanoparticles using aqueous leaf extract of Thevetia peruviana Juss and its antimicrobial activities

机译：贯叶连翘水提物对纳米银的生物合成及其抑菌活性

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摘要

Biosynthesizing of silver nanoparticles using microorganisms or various plant parts have proven more environmental friendly, cost-effective, energy saving and reproducible when compared to chemical and physical methods. This investigation demonstrated the plant-mediated synthesis of silver nanoparticles using the aqueous leaf extract of Thevetia peruviana . UV–Visible spectrophotometer was used to measure the surface plasmon resonance of the nanoparticles at 460?nm. Fourier Transform Infrared showed that the glycosidic –OH and carbonyl functional group present in extract were responsible for the reduction and stabilization of the silver nanoparticles. X ray diffraction, Scanning Electron Microscopy, Transmission Electron Microscopy and Selected Area Electron Diffraction analyses were used to confirm the nature, morphology and shape of the nanoparticles. The silver nanoparticles are spherical in shape with average size of 18.1?nm. The synthesized silver nanoparticles showed activity against fungal pathogens and bacteria. The zone of inhibition observed in the antimicrobial study ranged between 10 and 20?mm.
机译：与化学和物理方法相比，使用微生物或植物的各个部分进行银纳米颗粒的生物合成已被证明更环保，成本效益高，节能且可重现。这项研究证明了使用Thevetia peruviana的水性叶提取物进行植物介导的银纳米颗粒的合成。紫外可见分光光度计用于测量纳米粒子在460？nm的表面等离子体共振。傅里叶变换红外表明，提取物中存在的糖苷基-OH和羰基官能团是造成银纳米颗粒还原和稳定的原因。 X射线衍射，扫描电子显微镜，透射电子显微镜和选择区域电子衍射分析被用于确认纳米颗粒的性质，形态和形状。银纳米颗粒为球形，平均尺寸为18.1nm。合成的银纳米颗粒显示出对抗真菌病原体和细菌的活性。在抗微生物研究中观察到的抑制范围为10至20？mm。

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