Fate, transport and toxicity of nanomaterials in drinking water

Yang Zhang, Brian A. Koeneman, Yongsheng Chen, Paul Westerhoff, David Capco, John Crittenden

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The properties and fate of nanomaterials in water affects their potential environmental impacts and risk for human exposure. In this study, the physicochemical characteristics of six commercial metal oxide nanoparticles, a lab-synthesized hematite nanoparticle and a water-soluble CdTe quantum dots (QDs), their removal from water by conventional drinking water treatment processes and their toxicity on cells were examined. These nanomaterials exhibited different stability in water and conventional water treatment could not remove them completely. Toxicity studies showed that TiO2 nanomaterials could flatten down the microvilli of cells, decrease Trans-epithelial Electrical Resistance (TEER) and pass through the epithelial cells. These results imply that nanomaterials in drinking water may pose a potential exposure risk for human.

Original languageEnglish (US)
Title of host publication2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Pages678-680
Number of pages3
StatePublished - Aug 23 2007
Event2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 - Santa Clara, CA, United States
Duration: May 20 2007May 24 2007

Publication series

Name2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Volume2

Other

Other2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007
CountryUnited States
CitySanta Clara, CA
Period5/20/075/24/07

Keywords

  • Aggregate
  • Flocculation
  • Removal
  • Stability
  • Toxicity

ASJC Scopus subject areas

  • Mechanical Engineering

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