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Open Access Chemical Aspects of Nanoparticle Ecotoxicology

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Nanoecotoxicology strives to understand the processes and mechanisms by which engineered nanoparticles (ENP) may exert toxic effects on aquatic organisms. Detailed knowledge of the chemical reactions of nanoparticles in the media and of their interactions with organisms is required to understand these effects. The processes of agglomeration of nanoparticles, of dissolution and release of toxic metal ions, and of production of reactive oxygen species (ROS) are considered in this article. Important questions concern the role of uptake of nanoparticles in various organisms, in contrast to uptake of ions released from nanoparticles and to nanoparticle attachment to organism surfaces. These interactions are illustrated for effects of silver nanoparticles (AgNP), cerium oxide (CeO2 NP) and titanium dioxide (TiO2 NP), on aquatic organisms, including algae, biofilms, fish cells and fish embryos.

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Keywords: AGGLOMERATION; CERIUM OXIDE; EXPOSURE MEDIA; NANOPARTICLES; SILVER

Document Type: Research Article

Affiliations: 1: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; ETH Zürich Institute of Biogeochemistry and Pollutant Dynamics CH-8092 Zürich, Switzerland. [email protected] 2: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland 3: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; ETH Zürich Department of Chemistry and Applied Biosciences CH-8093 Zürich, Switzerland 4: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; Bemidji State University Department of Environmental Science Bemidji, MN, USA 5: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; McGill University Departments of Civil Engineering and Chemical Engineering Montreal, Canada 6: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; ETH Zürich Institute of Biogeochemistry and Pollutant Dynamics CH-8092 Zürich, Switzerland 7: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; EPF Lausanne, School of Architecture Civil and Environmental Engineering CH-1015 Lausanne, Switzerland 8: Eawag, Swiss Federal Institute of Aquatic Science and Technology P. O. Box 611, CH-8600 Dübendorf, Switzerland; ETH Zürich Institute of Biogeochemistry and Pollutant Dynamics CH-8092 Zürich, Switzerland; EPF Lausanne, School of Architecture Civil and Environmental Engineering CH-1015 Lausanne, Switzerland

Publication date: November 1, 2014

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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