PJB-2019-121
Green synthesis, characterization and biological evaluation of zinc nanoparticles from flower extract of Brassica oleracea italica
Ibrar Khan, Mamoona Jehanzeb, Rameen Nadeem, Akhtar Nadhman, Sadiq Azam, Inam Ullah and Farhan Ahmad
Abstract
The current work focused on green synthesis of Zinc nanoparticles (ZnNPs) using the aqueous extract of Brassica oleracea italica inflorescence acting as a reducing agent. The characterization of ZnNPs was done by UV visible spectrophotometer for confirmation of the zinc nanoparticles formation. Other techniques were also done including SEM for morphology, XRD for crystalline structure, EDX for elemental analysis, FTIR for functional groups determination and TGA for mass analysis. Spherical shape nanoparticles were found with size ranging between 100-500nm by SEM analysis. From analysis of TGA it was elucidated that the compound is thermally sensitive to temperature as weight reduction was observed with rise in temperature. The ZnNPs showed low activity against Shigella dysenteria, while a good antifungal activity was found against Paeciolmyces fulvus (70%). Positive results were achieved against blood groups O+, O-, AB- and B- while performing the haemagglutination activity. In phytotoxic activity, more damaged plants were observed at low concentration of ZnNPs. From the above study, it is concluded that the selected plant can be used for nanoparticles synthesis for achieving good antifungal, haemagglutination and phytotoxic effects.
To Cite this article:
Khan, I., M. Jehanzeb, R. Nadeem, A. Nadhman, S. Azam, I. Ullah and F. Ahmad. 2021. Green synthesis, characterization and biological evaluation of zinc nanoparticles from flower extract of Brassica oleracea italic. Pak. J. Bot., 53(1): DOI: http://dx.doi.org/10.30848/PJB2021-1(40)
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