The complete article "Manufactured nanomaterials: categorization and approaches to hazard assessment" can be downloaded at the website of the Journal "Archives of Toxicology", Volume 88, Issue 12, pp. 2191-2211 (charges may apply).
T. Gebel, H. Foth, G. Damm, A. Freyberger, P.-J. Kramer, W. Lilienblum, C. Röhl, T. Schupp, C. Weiss, K.-M. Wollin, J. G. Hengstler:
Manufactured nanomaterials: categorization and approaches to hazard assessment.
in: Archives of Toxicology, Volume 88, Issue 12 2014. pages 2191-2211, DOI: 10.1007/s00204-014-1383-7