New warning on a danger of nanoparticles

From UCLA

They've become ubiquitous in a range of products, from paints to vitamins and in cosmetics and sunscreens. But there are new warnings on the use of superfine titanium dioxide, so minuscule it's in the nanoparticle range: In mice, these TiO2 nanoparticles of which 2 million tons annually are manufactured and used in industry, caused systemic genetic damage. These nanoparticles, which have become most common in sunscreens because they make the product less visible and more absorbent, do not flush from the body and were found to accumulate in mouse organs where they caused stress-inducing molecular reactions in cells, breaking DNA and damaging chromosomes. They also heightened inflammation, a cancer-causing factor.   

Ubiquitous titanium dioxide nanoparticles causes systemic genetic damage in mice

Comments

[sudden memory loss]

Danger in deed, nanoparticles present possible dangers, both medically and environmentally. Most of these are due to the high surface to volume ratio, which can make the particles very reactive or catalytic. They are also able to pass through cell membranes in organisms, and their interactions with biological systems are relatively unknown.

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