Document Detail

Effects of nanometer-sized silver materials on survival response of Caspian roach (Rutilus rutilus caspicus).
MedLine Citation:
PMID:  22903180     Owner:  NLM     Status:  Publisher    
The aim of this study was to investigate the acute effects of nanosilver as potentially dangerous additives to assess the mortality effects of this nanotechnology product on one of the valuable and important species of Caspian Sea. We compared the toxicity of different sized silver nanoparticles (AgNPs) which are being widely used with Iranian consumers due to its unique antimicrobial activity. Ecotoxic assessments of AgNPs from two Iranian companies of nanotechnology (Nanocid®: average particle size of 18 nm and Nanosil®: average particle size of < 100 nm) and silver salt (AgSO(4)) were conducted on the Caspian roach (Rutilus rutilus caspicus). Fish were exposed to technical doses of Nanocid (0, 0.01, 0.1, 0.5, 1, 2.5 and 5 ppm), nominal doses of Nanosil (0, 0.2, 2, 20, 50, 100 and 200 ppm) and technical doses of silver sulfate (0, 0.001, 0.01, 0.1, 0.5, 1 and 2 ppm). The median lethal concentration (LC(50)) was determined with probite analysis. The estimated 96-h LC(50) values (95% confidence limits) for Nanocid, Nanosil and silver salt were 0.028 (0.017-0.046), 41.799 (32.314-52.139) and 0.003 (0.001-0.006) ppm, respectively. LC(50) of silver in silver salt was lower than other products. The present study demonstrates that nano-Ag was seen to be less toxic than dissolved Ag(+) to Caspian roach. Based on the results of this study, it is suggested that industrial and commercial applications of AgNPs should be more carefully and thoroughly assessed as to their potential toxic effects to the aquatic environment and Caspian roach populations.
Fardin Shaluei; Aliakbar Hedayati; Abdolreza Jahanbakhshi; Maryam Baghfalaki
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-17
Journal Detail:
Title:  Toxicology and industrial health     Volume:  -     ISSN:  1477-0393     ISO Abbreviation:  Toxicol Ind Health     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8602702     Medline TA:  Toxicol Ind Health     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
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