Synthesis of isotopically modified ZnO nanoparticles and their potential as nanotoxicity tracers
Synthesis of isotopically modified ZnO nanoparticles and their potential as nanotoxicity tracers
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DOI：
10.1016/j.envpol.2010.08.032
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发表时间：
2011-01-01
影响因子：
8.9
通讯作者：
Valsami-Jones, Eugenia
中科院分区：
文献类型：
--
作者：
Dybowska, Agnieszka D.;Croteau, Marie-Noele;Valsami-Jones, Eugenia
Understanding the behavior of engineered nanoparticles in the environment and within organisms is perhaps the biggest obstacle to the safe development of nanotechnologies. Reliable tracing is a particular issue for nanoparticles such as ZnO, because Zn is an essential element and a common pollutant thus present at elevated background concentrations. We synthesized isotopically enriched (89.6%) with a rare isotope of Zn (Zn-67) ZnO nanoparticles and measured the uptake of Zn-67 by L. stagnalis exposed to diatoms amended with the particles. Stable isotope technique is sufficiently sensitive to determine the uptake of Zn at an exposure equivalent to lower concentration range (
