Abstract

How legitimate may be the concern posed by the nanotechnologies for health and environment,this effort for reaching a better knowledge of the biotoxicity of nanomaterials is not enough. As Pr. Didier Sicard noted, we believe that the ethical reflection should not be the good conscience that may help science in getting rid of social fears. But the ethical reflection is there also to discuss taboo issues in the perspective of a better societal understanding.

Key-words:

Nanotechnology, Science, Technology, Environment, Legislation, Social control over science, Risk, Risks and benefits, Health hazards, International Cooperation, Health policy, Precautionary principle, Europe, European union, United States, France, Debates.