Environmental Management Hazards 2423-415X 1 1 2014 09 23 Risk Assessment of Engineered Nanoparticles (ENPs) Risk Assessment of Engineered Nanoparticles (ENPs) 37 45 52612 10.22059/jhsci.2014.52612 FA Seyed Abbas Shoja Alsadati Professor, Faculty of Chemical Engineering, Biotechnology Department, Tarbiat Modares University, Iran Spide Hamedi Assistant Professor, Faculty of Chemical Engineering, University of Golestan, Iran Journal Article 2014 11 06 Although the applications of nanotechnology have been widely studied, the risk measurement and assessment of nanoparticles effect on biological systems and ecosystems has not been clearly demonstrated. The small size and specific properties of nanoparticles makes them a carrier for toxic chemical pollutants. Several studies show the nanoparticles and nanotubes can release in the environment and cause harmful effects on human. In addition, nanoparticles can attach to colloid particles and affect their bioavailability and uptake to cells and microorganisms. Concerns about the side effects of nanoparticles on human, environment and ecosystem are increasing due to the appearance of unique properties of nanoparticles and increased exposure of human to them. The aim of nanotoxicology, a new branch in toxicology researches, is to evaluate the risk of products prepared by nanotechnology. Nanoparticles can enter organisms through water, soil and air. In this study the probable risks associated with nanoparticles on human and environment is demonstrated. Although the applications of nanotechnology have been widely studied, the risk measurement and assessment of nanoparticles effect on biological systems and ecosystems has not been clearly demonstrated. The small size and specific properties of nanoparticles makes them a carrier for toxic chemical pollutants. Several studies show the nanoparticles and nanotubes can release in the environment and cause harmful effects on human. In addition, nanoparticles can attach to colloid particles and affect their bioavailability and uptake to cells and microorganisms. Concerns about the side effects of nanoparticles on human, environment and ecosystem are increasing due to the appearance of unique properties of nanoparticles and increased exposure of human to them. The aim of nanotoxicology, a new branch in toxicology researches, is to evaluate the risk of products prepared by nanotechnology. Nanoparticles can enter organisms through water, soil and air. In this study the probable risks associated with nanoparticles on human and environment is demonstrated. https://jhsci.ut.ac.ir/article_52612_abce4bbeb82da1c1311dc735feca5786.pdf