International Journal of Chemical and Biomolecular Science
Articles Information
International Journal of Chemical and Biomolecular Science, Vol.1, No.3, Oct. 2015, Pub. Date: Jul. 25, 2015
Study the Antibacterial Effect of Bismuth Oxide and Tellurium Nanoparticles
Pages: 81-84 Views: 1887 Downloads: 1677
Authors
[01] Abdulkadir M. N. Jassim, Department of Chemistry, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
[02] Safanah A. Farhan, Polymer Research Center, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
[03] Jehan A. S. Salman, Department of Biology, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
[04] Khawla J. Khalaf, Department of Biology, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
[05] Mohammed F. Al Marjani, Department of Biology, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
[06] Mustafa T. Mohammed, Department of Chemistry, College of Science, Al-Mustansiriyah University, Baghdad, Iraq.
Abstract
Noble metals nanoparticles (NPs) were synthesized directly by pulsed laser ablation (Nd : YAG, λ = 1064 nm) of bismuth and tellurium plates immersed in pure water. Concentrations of the NPs were determined by Atomic Absorption Spectroscopy (AAS) measurement. Atomic Force Microscope (AFM) and Transmission Electron Microscope (TEM) analysis were used to characterize the size and size distributions of the metals NPs. The present study was conducted to synthesize bismuth and tellurium nanoparticles by laser ablation of bulk target immersed in liquid environment and study their antibacterial activity against some pathogenic bacteria. The results revealed that the concentration of NPs increase with increasing the pulses energy, while the average diameter, in general, decreased. Antibacterial properties of nanoparticles are attributed to their total surface area, as a larger surface to volume ratio of TeNPs provides more efficient means for enhanced antibacterial activity against pathogenic bacteria. Pseudomonas earuginosa was more sensitive to TeNPs than Acinetobacter baumannii and Escherichia coli. While, no effect of Bismuth Oxide NPs at different concentration on tested bacteria.
Keywords
Nanoparticles, Bismuth Oxide, Tellurium, Antibacterial Activity
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