Toxic effects of nanoparticles on bioluminescence activity, seed germination, and gene mutation

Title
Toxic effects of nanoparticles on bioluminescence activity, seed germination, and gene mutation
Author(s)
공인철고경석[고경석]
Keywords
ENGINEERED NANOPARTICLES; CONTAMINATED SOILS; ROOT ELONGATION; ECOTOXICITY; GROWTH; PLANTS; TIO2; PHYTOTOXICITY; NANOMATERIALS; TESTS
Issue Date
201404
Publisher
SPRINGER
Citation
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, v.98, no.7, pp.3295 - 3303
Abstract
The potential environmental toxicities of several metal oxide nanoparticles (NPs; CuO, TiO2, NiO, Fe2O3, ZnO, and Co3O4) were evaluated in the context of bioluminescence activity, seed germination, and bacterial gene mutation. The bioassays exhibited different sensitivities, i.e., each kind of NP exhibited a different level of toxicity in each of the bioassays. However, with a few exceptions, CuO and ZnO NPs had most toxic for germination of Lactuca seed (EC50 0.46 mg CuO/l) and bioluminescence (EC50 1.05 mg ZnO/l). Three NPs (Co3O4, TiO2, and Fe2O3) among all tested concentrations (max. 1,000 mg/l) showed no inhibitory effects on the tested organisms, except for Co3O4 NPs on bioluminescence activity (EC50 62.04 mg/l). The sensitivity of Lactuca seeds was greater than that of Raphanus seeds (EC50 0.46 mg CuO/l versus 26.84 mg CuO /l ). The ranking of metal toxicity levels on bioluminescence was in the order of ZnO > CuO > Co3O4 > NiO > Fe2O3, TiO2, while CuO > ZnO > NiO > Co3O4, Fe2O3, TiO2 on germination. No revertant mutagenic ratio (greater than 2.0) of Salmonella typhimurium TA 98 was observed under any tested condition. These findings demonstrate that several bioassays, as opposed to any single one, are needed for the accurate assessment of NP toxicity on ecosystems.
URI
http://hdl.handle.net/YU.REPOSITORY/32582http://dx.doi.org/10.1007/s00253-013-5404-x
ISSN
0175-7598
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공과대학 > 환경공학과 > Articles
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