Synthesis of isotopically modified ZnO nanoparticles and their potential as nanotoxicity tracers

Autor:	Superb K. Misra, Paul O'Brien, Paul Christian, Agnieszka Dybowska, Deborah Berhanu, Marie Noële Croteau, Samuel N. Luoma, Eugenia Valsami-Jones
Rok vydání:	2011
Předmět:	Pollutant Isotope Stable isotope ratio Chemistry Health Toxicology and Mutagenesis Trace element Nanoparticle chemistry.chemical_element General Medicine Zinc Toxicology Pollution Nanotoxicology Isotope Labeling TRACER Environmental chemistry Animals Nanoparticles Zinc Oxide Lymnaea
Zdroj:	Environmental Pollution. 159:266-273
ISSN:	0269-7491
DOI:	10.1016/j.envpol.2010.08.032
Popis:	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 ((67)Zn) ZnO nanoparticles and measured the uptake of (67)Zn 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 (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cd4c096ef7b90d5ea1ab38bd22adf0e https://doi.org/10.1016/j.envpol.2010.08.032 Zobrazit plný text záznamu Full Text from ScienceDirect