articleNano LettersMay 20, 2006Closed access

Cellular Toxicity of Carbon-Based Nanomaterials

École Polytechnique Fédérale de Lausanne · University of Lausanne

PubMed
Indexed incrossrefpubmed

Abstract

The cellular toxicity of carbon-based nanomaterials was studied as a function of their aspect ratio and surface chemistry. These structures were multiwalled carbon nanotubes, carbon nanofibers, and carbon nanoparticles. Their toxicity was tested in vitro on lung tumor cells. Our work clearly indicated that these materials are toxic while the hazardous effect is size-dependent. Moreover, cytotoxicity is enhanced when the surface of the particles is functionalized after an acid treatment.

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