Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 549, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2020.120361
Keywords
Antibacterial efficiency; Salmonella; Structural studies; NBOs; Ag+ ion diffusion; Cole-Cole plots
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Bioactive novel glasses of chemical composition xAg(2)O-20Li(2)O-25TeO(2)-(55-x) B2O3 (0 <= x <= 2 mol%) were synthesized through the melt-quench method and investigated the influence of Ag2O on various properties. The antibacterial properties of the obtained glasses were studied against two gram negative bacterial strains like Salmonella and E. Coli. (E. Coli.) species and the antibacterial zone of inhibition was increased with increasing Ag2O. The density (rho) of the glasses increased from 3.60 to 3.83 g/cm(3) with the addition of Ag2O. UV-Vis. absorption spectrum of the glass system was recorded and estimated the cut-off wavelength (lambda(c)), the optical band gap energies (E-opt), the Urbach energy (Delta E), the refractive index etc. FT-IR and Raman spectroscopic studies revealed the existence and impact of the modifier Ag2O. Impedance study revealed that the NBOs play significant role in the enhancement of the ionic conductivity and also causing the enhancement of antibacterial efficiency.
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