Hi @emiliomoron
I read your post, and I find it interesting, however, although the nanotechnology science is new, I really believe that the negative effects of nanoparticles are in humans for a long time, only now is when there is more technology that allows to quantify these tiny elements.
Hello my friend @josevas217, we are really exposed to nanoparticles since a long time, but particularly to man-made particles perhaps since recently, but certainly to advance in more efficient methods of detection is very important to understand their effect on the environment and people. Best regards!