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In the News

Nanotech boosters bray, but products remain scarce

BOSTON — Show us the profits, the skeptics shout.

Nanotechnology will amount to nanoprofits, they worry as they tick off a list of technologies from artificial intelligence to virtual reality that looked cool in the lab but have foundered commercially.

Such voices were all but drowned out this week at Nanotech 2004, the industry’s largest conference.