It is disputed in that subatomic 10−15m might be more viable. The video below discusses this view. Thielman and Annonymous mention Picotechnology - Wikipedia. read more
But, one day when we have it, people will start talking about pico technology as the next big thing. read more
Debleena Mandal, pursuing M.Tech in nanotechnology Answered Aug 29, 2016 Water purification by nano materials esp using silver nanoparticles in water filters is not at all new and many researches are going on in order to find another cost effective alternative. read more