For nanoclays, a study shows that exposure of the lungs with these particles causes only minimal and temporary lung damage.

 

The instillation of sepiolite nanoclays in the lungs of rats led to a temporary inflammation of the lungs only. No adverse effects on other organs were observed [1]. However, these nanoparticles caused the formation of multi-core giant cells (so-called giant cells). The biological significance of this observation, however, is still unclear.

 

Literature arrow down

  1. Warheit, DB et al. (2010), Toxicol Lett, 192(3): 286-293.

 

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