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首页> 外文期刊>Nanobiotechnology, IET >Biosynthesis and characterisation of silver nanoparticles using Sphingomonas paucimobilis sp. BDS1
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Biosynthesis and characterisation of silver nanoparticles using Sphingomonas paucimobilis sp. BDS1

机译：使用鞘脂鞘氨醇单胞菌 sp的银纳米颗粒的生物合成和表征。 BDS1

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is a novel and abundant microbial resource for biodegradation of aromatic compounds. It has great potential in environment protection and industrial production. The use of microorganisms for the synthesis of nanoparticles is in the limelight of modern nanotechnology, since it is cost effective, non-toxic and friendly to the ever-overwhelmed environment. In this paper, the biosynthesis of silver nanoparticles (AgNPs) using sp. BDS1 under ambient conditions was investigated for the first time. Biosynthesised AgNPs were characterised with powder ultraviolet-visible spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. The overall results revealed that well-dispersed face centred cubic spherical AgNPs in the range of 50-80 nm were produced on the surface of sp. BDS1, after challenging pure wet biomass with silver nitrate solution. This suggests that the capture of silver ions may be a complex process of physical and chemical adsorption and the proteins on the surface of the bacteria may play the role of reduction and stabilising agent with regard to the result of FTIR.
机译：是用于芳香化合物生物降解的一种新颖而丰富的微生物资源。在环境保护和工业生产方面具有巨大潜力。微生物用于合成纳米颗粒是现代纳米技术的关注焦点，因为它具有成本效益，无毒且对不堪重负的环境友好。在本文中，利用sp进行银纳米颗粒（AgNPs）的生物合成。首次研究了在环境条件下的BDS1。通过粉末紫外可见光谱，X射线衍射，傅立叶变换红外光谱（FTIR），场发射扫描电子显微镜和能量色散X射线光谱对生物合成的AgNP进行了表征。总体结果显示，在sp的表面上产生了50-80 nm范围内分散良好的面心立方球形AgNP。用硝酸银溶液挑战纯湿生物质后，BDS1。这表明捕获银离子可能是物理和化学吸附的复杂过程，并且细菌表面上的蛋白质可能就FTIR的结果起还原和稳定剂的作用。

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