Title |
Isotopically Modified Nanoparticles for Enhanced Detection in Bioaccumulation Studies
|
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Published in |
Environmental Science & Technology, December 2011
|
DOI | 10.1021/es2039757 |
Pubmed ID | |
Authors |
Superb K. Misra, Agnieszka Dybowska, Deborah Berhanu, Marie Noële Croteau, Samuel N. Luoma, Aldo R. Boccaccini, Eugenia Valsami-Jones |
Abstract |
This work presents results on synthesis of isotopically enriched (99% (65)Cu) copper oxide nanoparticles and its application in ecotoxicological studies. (65)CuO nanoparticles were synthesized as spheres (7 nm) and rods (7 × 40 nm). Significant differences were observed between the reactivity and dissolution of spherical and rod shaped nanoparticles. The extreme sensitivity of the stable isotope tracing technique developed in this study allowed determining Cu uptake at exposure concentrations equivalent to background Cu concentrations in freshwater systems (0.2-30 μg/L). Without a tracer, detection of newly accumulated Cu was impossible, even at exposure concentrations surpassing some of the most contaminated water systems (>1 mg/L). |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 3 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 67% |
Science communicators (journalists, bloggers, editors) | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 2 | 2% |
United Kingdom | 1 | 1% |
Spain | 1 | 1% |
Denmark | 1 | 1% |
Unknown | 81 | 94% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 25 | 29% |
Researcher | 16 | 19% |
Student > Master | 11 | 13% |
Professor > Associate Professor | 8 | 9% |
Professor | 4 | 5% |
Other | 14 | 16% |
Unknown | 8 | 9% |
Readers by discipline | Count | As % |
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Environmental Science | 18 | 21% |
Chemistry | 14 | 16% |
Materials Science | 10 | 12% |
Engineering | 8 | 9% |
Agricultural and Biological Sciences | 7 | 8% |
Other | 11 | 13% |
Unknown | 18 | 21% |