On behalf of the German Federal Ministry of Education and Research, Fraunhofer ITEM has conducted an inhalation toxicity study with nanoparticles. The aim was to close gaps in current knowledge about effects and interactions of nanomaterials with regard to humans and the environment and to enable the safe and responsible use of nanotechnology by German industry.

A 90-day study was performed to study the effects of cerium oxide and barium sulfate nanoparticles on the respiratory tract. The results demonstrated inflammatory effects in the alveolar space in particular. The use of very low doses enabled conclusions on particle-specific effects and is relevant for risk assessment of nanomaterials.

To access the full publication “Effects from a 90-day inhalation toxicity study with cerium oxide and barium sulfate nanoparticles in rats”, please click here.