Toxicological evaluation of clay minerals and derived nanocomposites: a review.

Maisanaba S1, Pichardo S1, Puerto M1, Gutiérrez-Praena D1, Cameán AM1, Jos A
Environ Res. 2015 Apr;138:233-54. doi: 10.1016/j.envres.2014.12.024. Epub 2015 Feb 28

https://www.ncbi.nlm.nih.gov/pubmed/25732897