1. Directorate F – Health, Consumers and Reference Materials, JRC, European Commission's Joint Research Centre, Ispra, Italy;
2. Department of Pharmaceutical Sciences and Swiss Centre for Applied Human Toxicology (SCAHT), University of Basel, Basel, Switzerland;
3. Istituto Superiore di Sanità, ISS, Roma, Italy;
4. Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany;
5. National Institute for Public Health and the Environment (RIVM), RIVM, Bilthoven, the Netherlands;
6. Parc Technologique ALATA, INERIS, Verneuil-en-Halatte, France;
7. Norwegian Institute for Air Research, NILU, Kjeller, Norway;
8. Institute of Molecular Biology – BAS, IMB-BAS, Sofia, Bulgaria;
9. Nanotechnology Industries Association, NIA, Woluwe-Saint-Pierre, Brussels, Belgium;
10. National Research Centre for the Working Environment, NRCWE, Copenhagen, Denmark;
11. Ideaconsult Ltd, Sofia, Bulgaria;
12. Institute for Environmental Medicine, KI, Karolinska Institutet, Stockholm, Sweden;
13. Toxicology Division, Misvik Biology, Turku, Finland;
14. Romanian Academy, Institute of Physical Chemistry “Ilie Murgulescu”, IPC, Bucharest, Romania;
15. National Institute of Occupational Health, STAMI, Gydas vei 8, Oslo, 0363, Norway