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Phytotoxicity and Bioavailability of Zinc, Zinc Oxide Nanoparticles to the Cucumis sativus  

Sohng, Yi-Reh (Division of EcoScience, Ewha Womans University)
Nam, Yoon-Sun (Division of EcoScience, Ewha Womans University)
Lee, In-Sook (Division of EcoScience, Ewha Womans University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.7, 2009 , pp. 467-472 More about this Journal
Abstract
Seedling growth test is used to assess toxicity of nanoparticles (NPs). This study evaluates toxicity of zinc, zinc oxide NPs on Cucumis sativus using two methods; phytagel and filter paper. From the comparison, phytagel method prevents precipitation of water insoluble NPS. Seeding length was negatively related to the exposed concentration of Zn, ZnO NPs in filter method. The median effective concentrations (EC50) for C. sativus exposed to Zn, ZnO NPs were estimated about 598, 600 mg/L in filter method. Bioaccumulation increased with the exposed concentration of Zn, ZnO NPs in only filter method. The results showed that the filter paper method was much better protocol than phytagel method.
Keywords
Phytotoxicity; Bioavailability; Nanoparticles; Cucumis sativus;
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