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Biosynthesis of silver nanoparticles from Tribulus terrestris and its antimicrobial activity: A novel biological approach

机译：Tri藜银纳米颗粒的生物合成及其抗菌活性：一种新颖的生物学方法

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In the recent decades, increased development of green synthesis of nanoparticles is inevitable because of its incredible applications in all fields of science. There were numerous work have been produced based on the plant and its extract mediated synthesis of nanoparticles, in this present study to explore that the novel approaches for the biosynthesis of silver nanoparticles using plant fruit bodies. The plant, Tribulus terrestris L. fruit bodies are used in this study, where the dried fruit body extract was mixed with silver nitrate in order to synthesis of silver nanoparticles. The active phytochemicals present in the plant were responsible for the quick reduction of silver ion (Ag ~+) to metallic silver nanoparticles (Ag ~0). The reduced silver nanoparticles were characterized by Transmission Electron Microscope (TEM), Atomic Force Microscope (AFM), XRD, FTIR, UV-vis spectroscopy. The spherical shaped silver nanoparticles were observed and it was found to be 16-28nm range of sizes. The diffraction pattern also confirmed that the higher percentage of silver with fine particles size. The antibacterial property of synthesized nanoparticles was observed by Kirby-Bauer method with clinically isolated multi-drug resistant bacteria such as Streptococcus pyogens, Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis and Staphylococcus aureus. The plant materials mediated synthesis of silver nanoparticles have comparatively rapid and less expensive and wide application to antibacterial therapy in modern medicine.
机译：在最近的几十年中，由于其在所有科学领域中的不可思议的应用，不可避免地会增加绿色合成纳米颗粒的开发。基于植物及其提取物介导的纳米粒子的合成，已经进行了许多工作，在本研究中，我们探索了利用植物子实体生物合成银纳米粒子的新方法。在这项研究中使用的植物是bul藜（Tribulus terrestris L.）子实体，其中将干燥的子实体提取物与硝酸银混合，以合成银纳米颗粒。植物中存在的活性植物化学物质将银离子（Ag〜+）快速还原为金属银纳米颗粒（Ag〜0）。还原的银纳米颗粒通过透射电子显微镜（TEM），原子力显微镜（AFM），XRD，FTIR，UV-可见光谱进行表征。观察到球形银纳米颗粒，发现其尺寸范围为16-28nm。衍射图还证实具有较高粒度的银百分比更高。通过Kirby-Bauer方法，对化脓性链球菌，铜绿假单胞菌，大肠埃希菌，枯草芽孢杆菌和金黄色葡萄球菌等临床分离的耐多药细菌观察到了合成纳米颗粒的抗菌性能。植物材料介导的银纳米颗粒的合成具有相对较快且较便宜的优点，并且广泛用于现代医学的抗菌治疗。

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