Are There Nanoparticles on Your Lips?: Getty Images From Popsci.com:
The tiniest tech is growing fast, and largely unregulated.
Nanotechnology makes use of minuscule objects -- 10,000 times narrower than a human hair -- known as nanoparticles. Upwards of 600 products on store shelves today contain them, including transparent sunscreen, lipsticks, anti-aging creams, and even food products.
Global nanotechnology sales have grown substantially in recent years, according to Lux Research, author of the annual Nanotech Report. The final tally isn't in yet, but analysts have predicted 2008 sales to be $150 billion. The National Science Foundation says the industry could be worth $1 trillion by 2015, and directly employ two million workers.
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