Biology Bulletin

, Volume 41, Issue 3, pp 255–263 | Cite as

Bioaccumulation of silver and gold nanoparticles in organs and tissues of rats studied by neutron activation analysis

  • Yu. P. Buzulukov
  • E. A. Arianova
  • V. F. Demin
  • I. V. Safenkova
  • I. V. GmoshinskiEmail author
  • V. A. Tutelyan
Animal and Human Physiology


Bioaccumulation of silver (Ag) and gold (Au) nanoparticles (NPs) with mean sizes of 35 nm and 6 nm, respectively, has been studied after their intragastric administration to rats at a dose of 100 μg/kg of body weight for 28 or 14 days. The organs and tissues (liver, kidney, spleen, heart, gonads, brain, and blood) were subjected to thermal neutron activation, and, then, the activity of the 110mAg and 198Au isotopes generated was measured. The NPs of both metals were detected in all biological samples studied, the highest specific weight and content of Ag NP being found in the liver, and those of Au being found in kidneys of animals. The content of Ag NPs detected in the brain was 66.4 ± 5.6 ng (36 ng/g tissue), no more than 7% of these NPs being localized in the lumen of brain blood vessels. The content of Ag and Au NPs found in organs and tissues of rats could be regarded as nonhazardous (nontoxic) in accordance with the known literature data.


Silver Nanoparticles Gold Nanoparticles Neutron Activation Analysis Biology Bulletin Intragastric Administration 
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Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  • Yu. P. Buzulukov
    • 1
  • E. A. Arianova
    • 2
  • V. F. Demin
    • 1
  • I. V. Safenkova
    • 3
  • I. V. Gmoshinski
    • 2
  • V. A. Tutelyan
    • 2
  1. 1.National Research Center Kurchatov InstituteMoscowRussia
  2. 2.Institute of NutritionRussian Academy of Medical SciencesMoscowRussia
  3. 3.Bakh Institute of BiochemistryRussian Academy of ScienceMoscowRussia

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