Abstract
A novel nanocomposite containing selenium-gold-chitosan (Se-Au-CS) was prepared and characterized using powder X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), UV–Vis spectroscopy, field emission scanning electron microscopy (FESEM), energy dispersive X-ray analysis (EDX) and transmission electron microscopy (TEM). The powder X-ray diffraction has shown successful synthesis of Se nanoparticles. To further study the presence of gold nanoparticles, EDX and UV–Vis were used. The morphological studies and grain sizes have revealed polyhedral shapes with a mean particle size of ≈211 nm. The TEM images also indicated the presence of nanoparticles in the CS coating. The Anti-oxidant effects of Se-Au-CS were evaluated using the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. Moreover, in the chorioallantoic membrane (CAM) assay, notable anti-angiogenesis effects were observed for Se-Au-CS. The results of this study demonstrated effective anti-angiogenesis effects of Se-Au-CS were evaluated using CAM assay for the first time. It also indicated the application of Se-Au-CS could be extended to the treatment of various cancer diseases.
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