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首页> 外文期刊>Artificial cells, nanomedicine, and biotechnology. >Biosynthesis of silver nanoparticles by Novosphingobium sp. THG-C3 and their antimicrobial potential
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Biosynthesis of silver nanoparticles by Novosphingobium sp. THG-C3 and their antimicrobial potential

机译：Novosphingobium sp。生物合成银纳米颗粒。 THG-C3及其抗菌潜力

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Abstract The present study described biosynthesis of silver nanoparticles (AgNPs) using a bacterial strain Novosphingobium sp. THG-C3, isolated from soil, and their application in antibacterial activity. The maximum absorbance values of the synthesized AgNPs was measured at 406?nm in ultraviolet-visible spectrophotometry and were mostly spherical in shape with particle size in range of 8–25?nm by field emission transmission electron microscopy analysis. X-ray diffraction pattern corresponding to planes (111), (200), (220), and (311) demonstrated the crystalline nature of the AgNPs. The synthesized AgNPs exhibited antimicrobial activity against various pathogens inculding Staphylococcus aureus, Candida tropicalis, Pseudomonas aeruginosa, Escherichia coli, Vibrio parahaemolyticus, Candida albicans, Salmonella enterica, Bacillus subtilis, and Bacillus cereus. In addition, the AgNPs in combination with commercial antibiotics enhanced antimicrobial activity against P. aeruginosa, S. enterica, E. coli, and V. parahaemolyticus. The AgNPs synthesized by strain Novosphingobium sp. THG-C3 are comparatively simple, green, cost-effective, and may serve as a potential antimicrobial agent.
机译：摘要本研究描述了利用细菌菌株Novosphingobium sp。合成银纳米颗粒（AgNPs）。从土壤中分离出的THG-C3及其在抗菌活性中的应用。合成AgNPs的最大吸光度值在紫外可见分光光度法中测得为406？nm，通过场发射透射电子显微镜分析，其形状大多为球形，粒径在8–25？nm范围内。对应于平面（111），（200），（220）和（311）的X射线衍射图证明了AgNP的晶体性质。合成的AgNPs对包括金黄色葡萄球菌，热带假丝酵母，铜绿假单胞菌，大肠杆菌，副溶血性弧菌，白色念珠菌，肠炎沙门氏菌，枯草芽孢杆菌和蜡状芽孢杆菌在内的各种病原体均具有抗菌活性。另外，AgNP与商业抗生素组合增强了对铜绿假单胞菌，肠炎链球菌，大肠杆菌和副溶血弧菌的抗菌活性。由Novosphingobium sp。合成的AgNPs。 THG-C3比较简单，绿色，具有成本效益，并且可以用作潜在的抗菌剂。

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