Synthesis and Characterization of Some Selenium Nanometric Compounds: Spectroscopic, Biological and Antioxidant AssessmentsReportar como inadecuado




Synthesis and Characterization of Some Selenium Nanometric Compounds: Spectroscopic, Biological and Antioxidant Assessments - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

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.

KEYWORDS

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

Cite this paper

Atta, A. , El-Shenawy, A. , Koura, F. and Refat, M. 2014 Synthesis and Characterization of Some Selenium Nanometric Compounds: Spectroscopic, Biological and Antioxidant Assessments. World Journal of Nano Science and Engineering, 4, 58-69. doi: 10.4236-wjnse.2014.42009.





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

Fuente: http://www.scirp.org/



DESCARGAR PDF




Documentos relacionados