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Stability of citrate-capped silver nanoparticles in exposure media and their effects on the development of embryonic zebrafish (Danio rerio)

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https://ir.library.oregonstate.edu/concern/articles/8049g603d

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  • The stability of citrate-capped silver nanoparticles (AgNPs) and the embryonic developmental toxicity were evaluated in the fish test water. Serious aggregation of AgNPs was observed in undiluted fish water (DM-100) in which high concentration of ionic salts exist. However, AgNPs were found to be stable for 7 days in DM-10, prepared by diluting the original fish water (DM-100) with deionized water to 10%. The normal physiology of zebrafish embryos were evaluated in DM-10 to see if DM-10 can be used as a control vehicle for the embryonic fish toxicity test. As results, DM-10 without AgNPs did not induce any significant adverse effects on embryonic development of zebrafish determined by mortality, hatching, malformations and heart rate. When embryonic toxicity of AgNPs was tested in both DM-10 and in DM-100, AgNPs showed higher toxicity in DM-10 than in DM-100. This means that the big-sized aggregates of AgNPs were low toxic compared to the nano-sized AgNPs. AgNPs induced delayed hatching, decreased heart rate, pericardial edema, and embryo death. Accumulation of AgNPs in the embryo bodies was also observed. Based on this study, citrate-capped AgNPs are not aggregated in DM-10 and it can be used as a control vehicle in the toxicity test of fish embryonic development.
  • Keywords: Nanoparticle Exposure Media, Nanoparticle Stability, Embryonic Zebrafish Toxicity, Silver Nanoparticles
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  • Park K, Tuttle G, Sinche F, Harper SL. Stability of citrate-capped silver nanoparticles in exposure media and their effects on the development of embryonic zebrafish (Danio rerio). Archives of Pharmacal Research 2013 Jan;36(1):125-33. doi:10.1007/s12272-013-0005-x
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  • 36
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  • 1
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  • This work was supported by National Research Foundation of Korea Grant funded by the Korean Government to K.P. (NRF-2010-013-E00035). Support to SLH was provided in part by National Institute of Environmental Health Sciences (NIEHS) grants ES017552-01A2, ES016896-01 and P30 ES03850, and the Air Force Research Laboratory (AFRL) FA8650-05-1-5041.
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