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Growth inhibition of aquatic plant caused by silver and titanium oxide nanoparticles

Title
Growth inhibition of aquatic plant caused by silver and titanium oxide nanoparticles
Authors
Kim, Eun JooKim, Soon HyunKim, Hyun ChulLee, Se GeunLee, Sung JunJeong, Sang Won
DGIST Authors
Kim, Eun JooKim, Soon HyunKim, Hyun ChulLee, Se GeunLee, Sung JunJeong, Sang Won
Issue Date
2011
Citation
Toxicology and Environmental Health Sciences, 3(1), 1-6
Type
Article
Article Type
Article
Keywords
Aquatic Plant ToxicityAtomic Emission SpectrometryChlorosisControlled StudyCulture MediumEnvironmental ExposureGrowth InhibitionGrowth RateLemnaLemna PaucicostataNanoparticleSilverSilver ChlorideSilver NanoparticleTitaniumTitanium Dioxide NanoparticleTitanium OxideToxicity TestingTransmission Electron MicroscopyUnclassified Drug
ISSN
2005-9752
Abstract
Emerging nanomaterials are of great concern to aquatic environment. The inhibitory effects of silver nanoparticles (Ag-NP) and titanium oxide nanoparticles (TiO2-NP) on the growth of aquatic plant duckweed were evaluated. Lemna paucicostata was used as a test organism, and the test method was followed by the OECD test guideline 221. Ag-NP (50 nm) and TiO2-NP (2-3 nm) inhibited the growth of Lemna in different manner and the EC50s were calculated as 13. 8 and 538. 5 ppm, respectively. The LOECs of Ag-NP and TiO2-NP were calculated to be 1 and 125 ppm, respectively. The results showed that Ag-NP could cause growth inhibition of Lemna in low concentration range (≥1 ppm), but TiO2-NP appeared toxic effect to the growth of Lemna in the concentration range of ≥250 ppm, which was over two orders higher than the previously reported concentration of TiO2-NP determined in the aquatic environment. © 2011 Korean Society of Environmental Risk Assessment and Health Science and Springer.
URI
http://hdl.handle.net/20.500.11750/5401
DOI
10.1007/s13530-011-0071-8
Publisher
Korean Society of Environmental Risk Assessment and Health Science
Related Researcher
  • Author Kim, Eunjoo  
  • Research Interests Biomarker, liquid biopsy, nanomedicine, molecular diagnosis
Files:
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Collection:
Magnet-Controlled Materials Research Group1. Journal Articles
Smart Textile Convergence Research Group1. Journal Articles
Magnet-Controlled Materials Research Group1. Journal Articles


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