The impact of a technological revolution such as NanoscienceNanoscienceNanosciences and its countless declinations in NanotechnologyNanotechnologyNanotechnologies is having strong implications, ethical, sociological and behavioural, in contemporary society. It has opened up completely new research horizons beyond those abilities discussed so far, which allow scientists to assemble matter, atoms and molecules for specific purposes. Societal perception of nanotechnology largely depends on the individual’s ability to process the information on the subject. The reasonably uneven level of scientific knowledge among the masses means that the acquisition of information is highly dependent on the quality of the scientific narrative. This is why it is desirable for information to be as widespread as possible, in every direction, and for its recipients to be fairly and ethically prepared. In this essay, we will describe the most relevant aspects of the nanoworld in Society; in particular, they present the role played by Nanoparticles in recent interactions with environment and organisms.