College of Science, University of Baghdad discussed a master dissertation on the role of LASER -produced tin-selenium plasmas to inhibit bacteria by the postgraduate student, Mrs Zahraa Abdul Karim.
The dissertation reviewed a study of the spectral analysis of the elements selenium (Se), tin (Sn) and a mixture of selenium and the calculation of plasma parameters (Te, ne, fD, λD, ND) resulting from the analytical plasma spectrum by means of the LASER -induced avalanche spectrum (LIBS).
The dissertation concluded that the intensity of the LASER-induced plasma emission spectral lines for (Se, Tin and Se:Sn) is strongly dependent on the LASER energy.
The dissertation demonstrated increasing the LASER energies with treatment by SnO leads to an increase in the killing rate of Staphylococcus aureus after isolating bacteria from the ear and the best kill is 700 mJ, while Pseudomonas aeruginosa increases the growth of bacteria
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