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标题：Biogenic synthesis, characterization and antimicrobial activity of Ixora brachypoda (DC) leaf extract mediated silver nanoparticles
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作者：Meghashyama Bhat ; Bidhayak Chakraborty ; Raju Suresh Kumar 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2021
卷号：33
期号：2
页码：1-7
DOI：10.1016/j.jksus.2020.101296
语种：English
出版社：Elsevier
摘要：Graphical abstractDisplay OmittedAbstractThe present investigation was aimed at the evaluation of synthesis, characterization and antimicrobial activity ofIxora brachypodaDC. leaf extract mediated silver nanoparticles (AgNPs). The AgNPs were characterized by UV–Visible (UV–Vis) spectrophotometer, Fourier transform infrared spectroscopy (FTIR), Atomic force microscopy (AFM), Scanning electron microscopy (SEM) with Energy dispersive X-ray spectrometry (EDS), Transmission electron microscopy (TEM), Zeta potential and X-ray diffractometry (XRD). Finally, the antimicrobial activity of synthesized AgNPs was investigated against pathogenic microorganisms. The absorption peak, obtained at 423 nm in UV–Vis analysis, confirmed the synthesis of AgNPs and the presence of biological functional groups involved in the capping and stabilization were determined by FTIR analysis. The other characterizations revealed the details about the AgNPs as spherical, poly-dispersed and size ranging from 18 to 50 nm with an average diameter of 27.76 nm. The zeta potential was calculated to be −30.4 mV and the typical Bragg’s planes in the metallic silver range indicated the confirmation of AgNPs formation. Thein-vitroanalysis confirmed the antimicrobial potential ofI. brachypodaleaf aqueous extract synthesized AgNPs, which effectively inhibited the growth of pathogens and it can be concluded that theI. brachypodaAgNPs can be used as broad-spectrum antimicrobials against multi-drug resistant microbial pathogens.
关键词：Ixora brachypoda;Plant extract;Biosynthesis;Nanoparticles;Antimicrobial activity