Platonova TA, Pridvorova SM, Zherdev AV, Vasilevskaya LS, Arianova EA, Gmoshinski IV, Khotimchenko SA, Dzantiev BB, Popov VO, Tutelyan VA. Identification of silver nanoparticles in the small intestinal mucosa, liver, and spleen of rats by transmission electron microscopy.
Bull Exp Biol Med 2014;
155:236-41. [PMID:
24130999 DOI:
10.1007/s10517-013-2122-4]
[Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The effects of water-dispersed Ag nanoparticles on the small intestinal mucosa, liver, and spleen of rats were studied by transmission electron microscopy. Acute experiments demonstrated penetration of Ag nanoparticles injected into the isolated intestinal loop into the intestinal mucosa, liver, and splenic tissues. Ultrastructural changes (lobed nucleus, megamitochondria) were found in the studied organs. These data indicated that injection of water-dispersed Ag nanoparticles into the gastrointestinal tract was followed by their penetration through the epithelium of the small intestinal mucosa into other organs, e.g. into the liver and spleen. This fact is essential for evaluation of potential risks of the nanoparticle effects on human health and environment.
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