In recent years, potential environmental and health risks of nanotechnology have been studied extensively worldwide. According to the nanoEHS Virtual Journal of the ICON (International Council on Nanotechnology) database at Rice University, from 2000 to 2013 there are 7,132 published nanotechnology EHS articles in the peer-review journals in which 93.3% of them (6,686 articles) are related to engineered nanoparticles 3.