2019

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Browsing 2019 by Author "AMBER AYAZ"

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    Green synthesis of nickel oxide nanoparticles and their applications
    (UMT, Lhr, 2019) AMBER AYAZ
    This research work includes green synthesis of Nickel oxide nanoparticles by using Abutilon indicum, which are commonly found in Asian countries along roads and inanimate places, often flowers after rain and in winter. This ancient plant is famous for the treatment of different diseases like piles, gonorrhea and cough etc. Abutilon indicum has proven anti-inflammatory, antimicrobial activity, hepatoprotective, hypoglycemic and antioxidant properties. Nickel oxide nanoparticles were prepared by using leaf extract of Abutilon indicum which act as a reducing as well as a capping agent for nanoparticles. XRD, EDS and UV-Vis spectroscopy are different techniques that are being used for the characterization of Nickel Oxide nanoparticles. The XRD analysis confirmed the purity and crystallinity of Nickel oxide nanoparticles. Average grain size of Nickel oxide nanoparticles found out to be 15.26 nm examined by XRD. Fabricated nanoparticles were tested for different applications. Antibacterial activity of nickel oxide nanoparticles were confirmed at four different bacterial strains (Escherichia coli, Bordetella bronchiseptica, Staphylococcus aureus, Bacillus subtilis) taking Leflox as positive control and DMSO as negative control. All bacterial strains give remarkable zones of inhibition tested with range of nanoparticles dilutions. Dye degradation efficiency under sunlight were carried out thrice for about 180 min to check the stability and catalytic power of prepared nanoparticles and compare with UV lamp, results reported that degradation efficiency decreases on each recycle but gave good results on comparison with UV lamp. Different concentrations range from 0.01-0.05 g/ml are taken with constant amount of Cr (VI) for adsorption activity, examined results shows as the concentration increases from 0.01 to 0.05 g/ml percentage adsorption also increases. Best adsorption percentage was fount out to be 17.23% at pH 4. Analysis of anticancer activity reported cell survival is high at low concentration and vice versa.