Transition of Nanoparticles Fе3O4 and Al in a Simplified Aquatic Food Chain

This article presents the results of experiments on the transitions of Fe3O4 nanoparticles (20–30 nm) and Al (18 nm) from one organism to another, making up a simple food chain (plant–mollusk–fish). In experiments, mollusks (Melonopsis praemorsa) feed on the leaves of a plant (Elodea canadensis) after being contaminated with Al or Fe3O4 nanoparticles. Nanoparticles were detected using TEM analysis in the cells of the mollusk’s organs. Then the fish (Oncorhynchus mykiss) were fed with mollusks. The distribution and localization of nanoparticles in fish organs has been determined. Experimental results showed that nanoparticles can pass from one organism to another in the food chain. Nanoparticles accumulate mainly in the liver of molluscs and fish.For the support of experiments, processing samples, obtaining electron diffraction patterns and TEM images, we express our gratitude to head of department of Histology, embryology and sitology, Professor E. K. Kasimov and Senior Researcher at the Laboratory of Electron Microscopy, Ph.D. F. Rzayev of Azerbaijan Medical University