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标题：Green synthesis of zinc oxide nanoparticles using flower extract of Nyctanthes arbor-tristis and their antifungal activity
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作者：Pragati Jamdagni ; Pragati Jamdagni ; Poonam Khatri 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2018
卷号：30
期号：2
页码：168-175
DOI：10.1016/j.jksus.2016.10.002
语种：English
出版社：Elsevier
摘要：AbstractBiological reduction agents are being explored worldwide to minimize the effects of toxic chemicals used in nanoparticle fabrication. The present study states a green approach for the synthesis of zinc oxide nanoparticles employing aqueous flower extract ofNyctanthes arbor-tristis.Flower extract was used as the biological reduction agent for synthesizing zinc oxide nanoparticles from zinc acetate dihydrate. Synthesis conditions were optimized for maximal and narrow size range synthesis of zinc oxide nanoparticles. The resultant nanopowder was characterized using various analytical techniques, such as UV–Visible spectroscopy, Fourier Transform Infrared spectroscopy, X-ray diffraction, Dynamic Light Scattering and Transmission Electron Microscopy. The nanopowder was stored in dried form and was found to be stable after 4months. The size range of nanoparticles obtained upon synthesis at optimum conditions was 12–32nm as reported by TEM. X-ray diffraction studies confirmed the crystalline nature of the nanoparticles indicating particle size within the range provided by electron microscopy data. Nanoparticles were tested for their antifungal potential and were found to be active against all five tested phytopathogens with lowest MIC value recorded as 16μg/mL. Hence, an easy and effective green approach for synthesis of zinc oxide nanoparticles, with efficient antifungal potential is reported in this study.
关键词：Zinc oxide;Phytosynthesis;Electron microscopy;Optical techniques;Flower extract;Antifungal activity