Viewpoints: Are Nanotechnology Products Safe?

| 01 June 2008

Although the existing toxicological methods are appropriate to assess many of the hazards associated with the products and processes involving nanoparticles, they may not be sufficient to address all of them. Even though products based on nonmetal materials are considered safe in humans, considerable hydrophobicity of fullerenes and carbon nanotubes can be a major factor in the "biopersistence" of these compounds and should be carefully studied. In general, nonphysiological or pathological effects have not been observed in humans following short-term exposure to nanomaterials and should be considered safe.


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