Niemand weet wat nanodeeltjes doen...

...Toch zitten ze in ons voedsel, in cosmetica, kleren en speelgoed
By Carole Bass, E Magazine, July 11, 2009

Zie ook:

Nanoparticles in sunscreens raise questions of safety
Zinc from sunscreen containing zinc oxide nanoparticles can penetrate healthy adult skin, raising questions over whether the zinc is still in its dangerous nanoparticle form, according to two recent Australian studies.

Later toegevoegd:

Nanoparticles Are in Our Food, Clothing and Medicine -- And No One Knows for Sure How Dangerous They Might Be
Door Heather Millar, Orion Magazine / Alternet, 23 februari 2013

[...] The regulation of nanoparticles has been recommended for more than a decade, but there’s no agreement on exactly how to do it. Meanwhile, the lid has already been lifted on nanotechnology. The use of man-made nanoparticles has spread into almost every area of our lives: food, clothing, medicine, shampoo, toothpaste, sunscreen, and thousands of other products.