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Histopathological effects of waterborne silver nanoparticles and silver salt on the gills and liver of goldfish Carassius auratus 
Abarghoei, S.; Hedayati, A.; Ghorbani, R.; Miandareh, H. K. & Bagheri, T.
Abstract
This study aimed to compare histopathological
effect of waterborne silver nanoparticles and silver salt
(AgNO3) on the gills and liver of Carassius auratus.
Therefore, one hundred and five live specimens of goldfish
were obtained and treated in five aquariums with 0, 0.01,
0.025, 0.05, and 0.1 ppm of AgNO3 and 0, 0.1, 0.5, 1, and
5 ppm of Ag nanoparticles (mean particle size of 5 nm).
Fish were sampled after 14 days of exposure. Results
showed that the kinds of pathologies observed with Ag NPs
were broadly of the same type as AgNO3 including
hyperplasia, edema and lifting of the gill epithelium, and
lamellar fusion of the gills, and hemosiderosis, hemorrhage,
hydropic swelling, and pyknotic nuclei of the liver.
Overall, the data showed that although Ag nanoparticles
and AgNO3 pathology were similar, but Ag nanoparticles
caused less injury than AgNO3 in the gills and liver of
goldfish. Therefore, it is more proper to use nanoform of
Ag in industrials.
Keywords
Silver nanoparticles; Gill pathology; Liver injury; Silver toxicity; Fish
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