Abstract
Recently the biosynthesis of nanoparticles using plant extracts has drawn the attention
of researchers. The aim of the present study is to investigate the potential of
Catharanthus roseus for the biological synthesis of iron nanoparticles and to evaluate
the antifungal efficacy of the synthesized particles against the selected fungal strains.
Biosynthesis of iron nanoparticles was performed through the n-hexane leaf extract of
Catharanthus roseus. The structural properties of the synthesized nanoparticles
(concentrations, 10%, 30%) were further investigated through UV-visible
spectroscopy; particle size analyzer (PSA), scanning electron microscopy (SEM) and
fourier transform infrared spectroscopy (FTIR). Results of the UV-Vis spectroscopy
of the synthesized iron nanoparticles showed the absorption spectra of iron
nanoparticles (FeNPs), prominent peak at 260 nm corresponding to the absorption of
iron nanoparticles was obtained. Particles size analyzer revealed the average size of
the iron nanoparticles that was calculated as 108 and 266 nm. Phenolics (OH group at
3350 cm-1) were observed as main bioactive phytochemical of the plant extract that
acted as capping agent in iron nanoparticles synthesis. Surface morphology using SEM
revealed the aggregates of irregular shaped iron nanoparticles. The antifungal activity
of these biosynthesized FeNPs against Aspergillus nidulans and Aspergillus terreus
was also evaluated, nanoparticles showed high activity against A. terreus. This study
concludes that the biosynthesis of iron nanoparticles is a safe and economical
approach.
Beenish Zia Butt, Sumera Javad, Saba Zia. (2018) Biogenic synthesis of iron nanoparticles from Catharanthus roseus, Asian Journal of Agriculture and Biology, Volume 6, Issue 1.
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