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ZnO-Ag core shell nanocomposite formed by green method using essential oil of wild ginger and their bactericidal and cytotoxic effects


Citation

Azizi, Susan and Mohamad, Rosfarizan and Abdul Rahim, Raha and Moghaddam, Amin Boroumand and Moniri, Mona and Ariff, Arbakariya and Saad, Wan Zuhainis and Namvab, Farideh (2016) ZnO-Ag core shell nanocomposite formed by green method using essential oil of wild ginger and their bactericidal and cytotoxic effects. Applied Surface Science, 384 (10). pp. 517-524. ISSN 0169-4332

Abstract

In this paper, a novel green method for fabrication of zinc oxide-silver (ZnO-Ag) core-shell nanocomposite using essential oil of ginger (EO-G) is reported. The EO-G played two significant roles in the synthesis process: it could act as a reaction media for the formation of ZnO and reduce Ag+ to Ag0. The bioformed ZnO-Ag nanocomposite was compared with pure biosynthesized ZnO-NPs and characterized by UV–vis spectroscopy, TEM, EDX, XRD and FTIR. The characterization results confirmed that Ag-NPs had been embedded in ZnO hexagonal nanoparticles. Six Gram positive and negative pathogens were used to investigate the antibacterial effects of these samples. Ag-doping improves the bactericidal activity of ZnO-NPs. In vitro cytotoxicity studies on Vero cells, a dose dependent toxicity with non-toxic effect of concentration below 100 μg/mL was shown for ZnO-Ag nanocomposite. The biosynthesized ZnO-Ag nanocomposites were found to be comparable to those obtained from the conventional methods using hazardous materials which can be an excellent alternative for the synthesis of ZnO-Ag using biomass.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Institute of Tropical Forestry and Forest Products
DOI Number: https://doi.org/10.1016/j.apsusc.2016.05.052
Publisher: Elsevier
Keywords: ZnO-Ag nanocomposite; Core-shell; Green synthesis; Ginger; Antimicrobial activities
Depositing User: Nida Hidayati Ghazali
Date Deposited: 27 Jul 2017 09:53
Last Modified: 27 Jul 2017 09:53
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.apsusc.2016.05.052
URI: http://psasir.upm.edu.my/id/eprint/53271
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