Nanostructured CdO-NiO composite for multifunctional applications

作者：Karthik K^*; Dhanuskodi S; Gobinath C; Prabukumar S; Sivaramakrishnan S

来源：Journal of Physics and Chemistry of Solids, 2018, 112: 106-118.

DOI：10.1016/j.jpcs.2017.09.016

• Antibacterial
• Anticancer
• Luminescence
• Microwave-assisted method
• Nanocomposite

In this study, CdO, NiO, and CdO-NiO nanocomposites (NCs) were synthesized and investigated by X-ray diffraction (XRD), scanning electron microscopy, and Fourier transform-infrared spectroscopy. XRD detected cubic structures with average crystallite sizes of 45 nm for CdO, 25 run for NiO, and 30 nm for CdO-NiO. The band gap was estimated based on the ultraviolet visible spectra. The near band edge emission was determined according to the luminescence spectrum. The antibacterial activities were tested against seven foodborne pathogens and the zones of inhibition with the Gram-negative bacterium Bacillus subtilis measured as 30 mm with CdO, 20 mm NiO, and 27 mm with CdO-NiO. The death of the bacterial cells was confirmed by confocal laser scanning microscope analysis. Cytotoxicity assays indicated the non-toxic effects of the NCs on normal healthy red blood cells. Furthermore, the in vitro cytotoxic effects of the CdO, NiO, and CdO-Ni0 NCs were examined using the human MCF-7 breast cancer cell line based on 3[4,5-dimethylthiazol-2-y1]2,5-diphenyltetrazolium bromide assays with normal mouse embryonic fibroblasts (NH3T3) under identical conditions.

• 出版日期2018-1