Supplement to the journal
"Trace Elements in Medicine" (Moscow)
2021: 10-12

NICKEL METABOLISM IN HYDROBIONTS TISSUES AGAINST THE BACKGROUND OF NICKEL-CONTAINING NANOPARTICLES IN AQUATIC ENVIRONMENT

A.E. Arinzhanov*, E.P. Miroshnikova, Y.V. Kilyakova

Orenburg State University

DOI: 10.19112/2413-6174-2021-S1-03 

ABSTRACT. The peculiarity of nickel metabolism in Danio rerio and Limnea stagnalis tissues in presence of nickel-containing nanoparticles in aquatic environment: Ni with size of 70 nm at 1.0 mg/dm3 dosage and NiO with size of 94 nm at 1.3 mg/dm3 dosage was studied. High bioavailability of nickel in nanoform was identified and as a consequence there was an increase of nickel content on the 7th day of exposure in Danio rerio tissues by 9.5 times and 2 times, in Limnea stagnalis tissues by 8.6 times and 15 times against the background of NiO and Ni nanoparticles presence in aquatic environment, respectively. A decrease in nickel level to control valueswas recorded whenexposure was further increased in Danio rerio tissues, due to the activation of the fish homeostasis system and the body ability to adapt to the nanoparticles action and to remove them from the body, unlike Limnea stagnalis.

KEYWORD: nickel, nanoparticles, Danio rerio, Limnea stagnalis.