Citation
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: | Ms. 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 |
| Statistic Details: | View Download Statistic |
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