Laboratory assessment of the mobility of nanomaterials in porous media.

Published

Journal Article

The production of significant quantities of engineered nanomaterials will inevitably result in the introduction of these materials to the environment. Mobility in a well-defined porous medium was evaluated for eight particulate products of nanochemistry to assess their potential for migration in porous media such as groundwater aquifers and water treatment plant filters. Contrary to the assertion that nanomaterials present monolithic environmental risks, here we show that these nanomaterials exhibit widely differing transport behaviors. Fullerene-based nanomaterials that had been functionalized to facilitate dispersal in water displayed the highest mobilities, with a calculated potential to migrate approximately 10 m in unfractured sand aquifers. Colloidal aggregates of C60, which have been the focus of recent toxicity studies, were among the least mobile of the nanomaterials evaluated.

Full Text

Duke Authors

Cited Authors

  • Lecoanet, HF; Bottero, J-Y; Wiesner, MR

Published Date

  • October 2004

Published In

Volume / Issue

  • 38 / 19

Start / End Page

  • 5164 - 5169

PubMed ID

  • 15506213

Pubmed Central ID

  • 15506213

Electronic International Standard Serial Number (EISSN)

  • 1520-5851

International Standard Serial Number (ISSN)

  • 0013-936X

Digital Object Identifier (DOI)

  • 10.1021/es0352303

Language

  • eng