2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Fate, Transport, and Toxicity of Nanomaterials in Drinking Water

Y. Zhang, B.A. Koeneman, Y. Chen, P. Westerhoff, D.G. Capco and J. Crittenden
Arizona State University, US

stability, removal, drinking water treatment, toxicity

The objective of this research is to evaluate the potential risk of human exposure to nanomaterials in drinking water by examining three issues: 1) characteristics and stability of nanomaterials in the water environment; 2) removal of nanomaterials during conventional water treatment processes; and 3) the toxicity of nanomaterials on cells. Six commerical metal oxide nanoparticles, a lab-synthesized hematite nanoparticle and a water solule CdTe quantum dots were studied. The results showed that these nanomaterials had different stability in water and conventional water treatment could not remove these nanomaterials completely. In addition, toxicity studies showed that nanomaterials could flatten down the microvilli of cells and pass through the epithelial cells.

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Nanotech 2007 Conference Program Abstract


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