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has been cited by the following article:

• TITLE: Synthesis and Characterization of Some Selenium Nanometric Compounds: Spectroscopic, Biological and Antioxidant Assessments

  AUTHORS: Aly H. Atta, Ahmed I. El-Shenawy, Fathy A. Koura, Moamen S. Refat

  KEYWORDS: Vitamin A, Selenium, Nano-Scale, Spectroscopic, Thermal Analysis, Antimicrobial Activity

  JOURNAL NAME: World Journal of Nano Science and Engineering, Vol.4 No.2, May 26, 2014

  ABSTRACT: Selenium (IV) vitamin A complex as antioxidant drug design was prepared and characterized by microanalysis, conductance, infrared spectra, Raman laser spectra, 1HNMR spectra, scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and thermogravimetric (TG/DTG and DTA) tool of analyses. Vitamin A chelate was coordinated as a mono-dentate ligand through the oxygen atom of –OH hydroxyl group. Thermal degradation analyses discussed the removal of terminal methyl molecules in the first and second decomposition stage while the organic ligand moieties existed in the third and subsequence steps. The Se (IV) complex in comparable with free vitamin A ligand has been assessed against some kinds of bacteria and fungi which gave a significant inhibition. The surface morphology and nano scale size of selenium metal and its vitamin complex were proved. The activation energy and other thermodynamic parameters (ΔH*, ΔS* and ΔG*) of Se (IV) complex were calculated using Coats-Redfern and Horowitz-Metzger equations.