Intracellular biosynthesis of Au and Ag nanoparticles using ethanolic extract of Brassica oleracea L. and studies on their physicochemical and biological properties

Journal of Environmental Sciences (China)
Palaniselvam KuppusamyNatanamurugaraj Govindan

Abstract

In this present study, we reported broccoli (Brassica oleracea L.) as a potential candidate for the synthesis of gold and silver nanoparticles (NPs) in green chemistry method. The synthesized metal nanoparticles are evaluated their antimicrobial efficacy against different human pathogenic organisms. The physico-chemical properties of gold nanoparticles were analyzed using different analytical techniques such as a UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and a Fourier Transform Infrared spectrophotometer. In addition, gold and silver NP antimicrobial efficacy was checked by disc diffusion assay. UV-Vis color intensity of the nanoparticles was shown at 540 and 450 nm for gold and silver nanoparticles respectively. Higher magnification of the Field Emission Scanning Electron Microscopy image shows the variable morphology of the gold nanoparticles such as spherical, rod and triangular shapes and silver nanoparticles were seen in spherical shapes. The average spherical size of the particles was observed in 24-38 nm for gold and 30-45 nm for silver NPs. X-ray diffraction pattern confirmed the presence of gold nanoparticles and silver nanoparticles w...Continue Reading

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Citations

Jan 15, 2016·IET Nanobiotechnology·Meysam Soltani NejadGholam Hosein Shahidi Bonjar
Aug 11, 2015·Journal of Environmental Sciences (China)·Qi ZhengX Chris Le
May 29, 2016·Journal of Photochemistry and Photobiology. B, Biology·Shakeel AhmedSalprima Yudha S
Jul 1, 2016·Nanoscale Research Letters·Daniela BallottinLjubica Tasic
Jun 21, 2019·Environmental Science and Pollution Research International·Arumugam Dhanesh GandhiAdikesavan Selvi
May 16, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Lu Chen, Jiangong Liang
Jun 26, 2021·Scientific Reports·M SivakavinesanG Annadurai

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