Nowadays, nanotechnology has been applied to consumer products, i.e. T-shirt with Nanosilver or Cosmetics doped with Nanoparticles. One popular question is that “Nanotechnology used has any potential risk to envelopment or to human health or not?”. Prof. Robert Schiestl from UCLA's Jonsson Comprehensive Cancer Center reported that titanium dioxide (TiO₂) nanoparticles, found in everything from cosmetics and sunscreen to paint and vitamins, caused systemic genetic damage in mice. (TiO₂) nanoparticles can accumulate in different organs because the body has no way to eliminate them. And because they are so small, they can go everywhere in the body, even through cells, and may interfere with sub-cellular mechanisms. In his study, mice were exposed to the TiO₂ nanoparticles in their drinking water and began showing genetic damage on the fifth day. The human equivalent is about 1.6 years of exposure to the nanoparticles in a manufacturing environment......

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