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Silver nanomaterials have been intensively applied in consumer products of diverse industrial sectors because of their strong biocidal properties and reported to be hazardous to aquatic organisms once released in the environment. Nanomaterials including sliver, are known to be different in toxicity according to their physicochemical characteristics such as size, shape, length etc. However studies comparing toxicity among silver nanomaterials with different physicochemical characteristics are very limited. Here, toxicities of silver nanomaterials with different size (50, 100, 150 nm), length (10, 20 μm), shape (wire, sphere), and coating material (polyvinylpyrrolidone, citrate) using OECD test guidelines were evaluated in aquatic species (zebrafish, daphnia, algae) and compared. On a size property, the smaller of silver nanomaterials, the more toxic to tested organisms. Sphered type of silver nanomaterials was less toxic to organisms than wired type, and shorter nanowires were less toxic than longer ones. Meanwhile the toxic effects of materials coated on silver nanomaterials were slightly different in each tested species, but not statistically significant. To the best of our knowledge, it is first investigation to evaluate and compare ecotoxicity of silver nanomaterials having different physicochemical characteristics using same test species and test guidelines. This study can provide valuable information for human and environmental risk assessment of silver nanomaterials and guide material manufacturers to synthesize silver nanomaterials more safely to human and environment.
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참고문헌 (42)
참고문헌 신청
Artal MC / 2013 / The role of silver and vanadium release in the toxicity of silver vanadate nanowires toward Daphnia similis / Environ. Toxicol. Chem 32:908~912
Aruoja V / 2004 / Toxicity testing of heavy-metal-polluted soils with algae Selenastrum capricornutum: a soil suspension assay / Environ. Toxicol 19:396~402
Asghari S / 2012 / Toxicity of various silver nanoparticles compared to silver ions in Daphnia magna / J. Nanobiotechnology 10:14
Baetke SC / 2015 / Applications of nanoparticles for diagnosis and therapy of cancer / Br. J. Radiol 88:2015207
방승혁 / 2011 / Toxicity Assessment of Titanium (IV) Oxide Nanoparticles Using Daphnia magna (Water Flea) / 환경독성보건학회지 26:14~19
Aruoja V / 2004 / Toxicity testing of heavy-metal-polluted soils with algae Selenastrum capricornutum: a soil suspension assay / Environ. Toxicol 19:396~402
Asghari S / 2012 / Toxicity of various silver nanoparticles compared to silver ions in Daphnia magna / J. Nanobiotechnology 10:14
Baetke SC / 2015 / Applications of nanoparticles for diagnosis and therapy of cancer / Br. J. Radiol 88:2015207
방승혁 / 2011 / Toxicity Assessment of Titanium (IV) Oxide Nanoparticles Using Daphnia magna (Water Flea) / 환경독성보건학회지 26:14~19
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