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Study of the Reactions of Microorganisms in Response to the Magnetite Nanoparticles

DOI: 10.4236/oalib.1101488    666 Downloads   916 Views  

ABSTRACT

The influence of basic physical factors caused by magnetite nanoparticles (constant magnetic field and sorption) on microorganisms by examining the reactions of the intensity of free radical lipid peroxidation (FRLP) and bacteriostatic action was studied. It was well established that the magnetite nanoparticles caused unequal reaction in intensity of FRLP on different groups of microorganisms. It was determined that the most significant factor that influenced on the ultimate indicator of the intensity of luminescence on C. albicans, E. coli and P. aeruginosa was constant magnetic field which induced by nanoparticles. On the contrary, sorption was the most significant factor on S. aureus. It was found that the rate of consumption of free radicals lipid reduced reliably on all microorganisms after their processing by magnetite nanoparticles. The results of microbiological studies of E. coli, K. pneumoniae and S. aureus showed that bacteriostatic effect was detected after exposure by magnetite nanoparticles. Visually, it was detected by decreasing the number of colonies on the nutritious medium in comparison with the control. It was revealed an interesting fact that saline NaCl, which had previously been processed by magnetite nanoparticles also significantly had a marked bacteriostatic effect on the studied microorganisms. This effect could be explained by mechanism of change the polarization structure water of microorganisms by magnetite nanoparticles. It was discovered that degree of expression of bacteriostatic action which induced by magnetite nanoparticles had correlation with marks of reactions intensity of FRLP. Maximum bacteriostatic effect on S. aureus was expressed in second variant application of magnetite nanoparticles where mechanism of sorption was more significant than action of the magnetic field. On the contrary, maximum bacteriostatic effect on E. coli and K. pneumoniae was revealed in third variant, where time exposition of contact with microorganisms nanoparticles and, consequently, action of a constant magnetic field was determinative.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Belousov, A. and Voyda, Y. (2015) Study of the Reactions of Microorganisms in Response to the Magnetite Nanoparticles. Open Access Library Journal, 2, 1-5. doi: 10.4236/oalib.1101488.

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