Isotopically modified nanoparticles for enhanced detection in bioaccumulation studies

Misra SK, Dybowska A, Berhanu D, Croteau MN, Luoma SN, Boccaccini AR, Valsami-Jones E (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Environmental Science & Technology American Chemical Society

Publisher: American Chemical Society

Book Volume: 46

Pages Range: 1216-1222

Journal Issue: 2

DOI: 10.1021/es2039757

Abstract

This work presents results on synthesis of isotopically enriched (99% 65Cu) copper oxide nanoparticles and its application in ecotoxicological studies. 65CuO 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). © 2011 American Chemical Society.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Natural History Museum London GB United Kingdom (GB) United States Geological Survey (USGS) US United States (USA) (US)

How to cite

APA:

Misra, S.K., Dybowska, A., Berhanu, D., Croteau, M.N., Luoma, S.N., Boccaccini, A.R., & Valsami-Jones, E. (2012). Isotopically modified nanoparticles for enhanced detection in bioaccumulation studies. Environmental Science & Technology, 46(2), 1216-1222. https://dx.doi.org/10.1021/es2039757

MLA:

Misra, Superb K., et al. "Isotopically modified nanoparticles for enhanced detection in bioaccumulation studies." Environmental Science & Technology 46.2 (2012): 1216-1222.

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