Nanotechnology & Health
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a collection of articles about nanomaterials and health
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foodconsumer.org - Zinc oxide found toxic - study

foodconsumer.org - Zinc oxide found toxic - study | Nanotechnology & Health | Scoop.it

But it is common that many food and dietary supplements manufacturers use nanoparticles like titanium dioxide, silicon dioxide and zinc oxide in foods and dietary supplements.

Titanium dioxide is not the only nanomaterial that is toxic. Because the toxicity of nanoparticles is largely caused by the particles' sizes, the toxicity observed with titanium dioxide can also be applicable to other nanoparticles like zinc oxide and silicon dioxide.

A study recently published in Nanotoxicology shows that zinc oxide (ZnO) nanoparticles may be even more toxic than titanium dioxide (TiO(2)).

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Ions, not particles, make silver toxic to bacteria: Too small a dose may enhance microbes' immunity

Ions, not particles, make silver toxic to bacteria: Too small a dose may enhance microbes' immunity | Nanotechnology & Health | Scoop.it

"Researchers have settled a long-standing controversy over the mechanism by which silver nanoparticles, the most widely used nanomaterial in the world, kill bacteria. Their work comes with a Nietzsche-esque warning: Use enough. If you don't kill them, you make them stronger."

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