Trace Elements in Medicine (Moscow)
2017, 18(1): 38–42
ORIGINAL PAPER

THE MINERAL COMPOSITION OF EISENIA FETIDA TISSUES AT THE PRESENCE OF MOLYBDENUM OXIDE (VI) NANOPARTICLES IN CULTURE MEDIUM

S.V. Lebedev1,2, I.A. Gavrish1,2

1 Orenburg State University, Pobedy str. 13, Orenburg, 460015, Russia
2 All-Russian Research Institute of Beef Cattle Breeding, 9 Janvarja str. 29, Orenburg, 460000, Russia

DOI: 10.19112/2413-6174-2017-18-1-38-42 

ABSTRACT. In recent years a promising area of research in science and technology have become nanotechnology. However, the use of nanoparticles, including metals, requires careful assessment of their behavior in living systems to determine their applicability. The accumulation of the molybdenum oxide nanoparticles in tissues of Eisenia fetida was investigated at dosage 10, 40 and 500 mg/kg of dry soil. We use two substrates: microcrystalline cellulose (A) and artificial soil (B). Degree of Mo accumulation in the tissues of the worm depended upon the dose and the substrate. In particular, when increase the concentration of molybdenum oxide nanoparticles, in the substrate A there was accumulated from 2 to 7 mg/kg molybdenum, while in the substrate B up to 15 mg/kg, with a decrease in concentration at doses 40 mg/kg and 500 mg/kg by the 14th day to 64.8% and 57.4% respectively. These results make it possible to assume that the high degree of Mo accumulation in the body of the worm located on the substrate A is associated with passive process, which is due to available Mo concentrations in the substrate, instead of the active processes that are regulated by earthworms.

KEYWORDS: nanoparticles of molybdenum oxide, Eisenia fetida, the rate of accumulation.