Document Detail

Toxicity of two types of silver nanoparticles to aquatic crustaceans Daphnia magna and Thamnocephalus platyurus.
MedLine Citation:
PMID:  23143296     Owner:  NLM     Status:  MEDLINE    
Although silver nanoparticles (NPs) are increasingly used in various consumer products and produced in industrial scale, information on harmful effects of nanosilver to environmentally relevant organisms is still scarce. This paper studies the adverse effects of silver NPs to two aquatic crustaceans, Daphnia magna and Thamnocephalus platyurus. For that, silver NPs were synthesized where Ag is covalently attached to poly(vinylpyrrolidone) (PVP). In parallel, the toxicity of collargol (protein-coated nanosilver) and AgNO₃ was analyzed. Both types of silver NPs were highly toxic to both crustaceans: the EC50 values in artificial freshwater were 15-17 ppb for D. magna and 20-27 ppb for T. platyurus. The natural water (five different waters with dissolved organic carbon from 5 to 35 mg C/L were studied) mitigated the toxic effect of studied silver compounds up to 8-fold compared with artificial freshwater. The toxicity of silver NPs in all test media was up to 10-fold lower than that of soluble silver salt, AgNO₃. The pattern of the toxic response of both crustacean species to the silver compounds was almost similar in artificial freshwater and in natural waters. The chronic 21-day toxicity of silver NPs to D. magna in natural water was at the part-per-billion level, and adult mortality was more sensitive toxicity test endpoint than the reproduction (the number of offspring per adult).
Irina Blinova; Jukka Niskanen; Paula Kajankari; Liina Kanarbik; Aleksandr Käkinen; Heikki Tenhu; Olli-Pekka Penttinen; Anne Kahru
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-11-11
Journal Detail:
Title:  Environmental science and pollution research international     Volume:  20     ISSN:  1614-7499     ISO Abbreviation:  Environ Sci Pollut Res Int     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-04-24     Completed Date:  2013-07-02     Revised Date:  2013-07-25    
Medline Journal Info:
Nlm Unique ID:  9441769     Medline TA:  Environ Sci Pollut Res Int     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  3456-63     Citation Subset:  IM    
Laboratory of Molecular Genetics, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia.
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MeSH Terms
Anostraca / drug effects*
Daphnia / drug effects*
Environmental Exposure*
Lethal Dose 50
Metal Nanoparticles / toxicity*
Povidone / chemistry
Silver / toxicity*
Silver Compounds / toxicity
Silver Nitrate / toxicity
Species Specificity
Water Pollutants, Chemical / toxicity*
Reg. No./Substance:
0/Silver Compounds; 0/Water Pollutants, Chemical; 7440-22-4/Silver; 7761-88-8/Silver Nitrate; 9003-39-8/Povidone; 9007-35-6/collargol
Erratum In:
Environ Sci Pollut Res Int. 2013 Jun;20(6):4293

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