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

Research output: Contribution to journalArticle


  • AD Dybowska
  • MN Croteau
  • SK Misra
  • D Berhanu
  • SN Luoma
  • P Christian
  • P O’Brien

Colleges, School and Institutes


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 (67Zn) ZnO nanoparticles and measured the uptake of 67Zn 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 (


Original languageEnglish
Pages (from-to)266-273
Number of pages8
JournalEnvironmental Pollution
Issue number1
Publication statusPublished - 1 Jan 2011