Nanotechnology refers to the manipulation of matter on the scale of the nanometer (one billionth of a meter). Nanoscale science operates in the realm of single atoms and molecules. At present, commercial nanotechnology involves materials science (i.e. researchers have been able to make materials that are stronger and more durable by taking advantage of property changes that occur when substances are reduced to nanoscale dimensions). As nanoscale molecular self-assembly becomes a commercial reality, nanotech will move into conventional manufacturing and it is already changing healthcare, food and drug production. Nanotechnology involves profound social , military and environmental risks, with new nanomaterials potentially threatening raw material economies of the south and posing new health risks to workers and the public at large.

Un document d’information préparé par ETC Group en vue du Sommet Rio+20 20 mar 2012
Un numéro spécial de Pambazuka News en collaboration avec ETC Group 25 jan 2011
L´impact des nanotechnologies sur l'agriculture et l'alimentation 29 nov 2004