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FROM non-greasy sunscreens and cosmetics to dirt-repelling fibres coated with tiny carbon tubes, nano-products are on sale, unregulated and ringing scientific alarm bells.
"We have to pay attention to nanotechnology before it hits us on the head," warned engineer and social scientist Bruce Bimber of the University of California at Santa Barbara.
"We need to know how the nano-materials behave in biological systems, agricultural products and ecosystems, as well as the human body."
Professor Bimber is the founder of UCSB's Centre for Nanotechnology and Society and was a keynote speaker at the Australian National University's symposium on the social impact of nanotechnology, held...