Say “nanotechnology,” and geeks imagine iPhones, laptops and flash drives. But more than 60 percent of the 580 products in a newly updated inventory of nanotechnology consumer products are such “un-geeky” items as tennis racquets, clothing, and health products.

The U.S. Environmental Protection Agency released its current thinking on whether a nanoscale material is a “new” or “existing” chemical substance under the Toxic Substances Control Act (TSCA).

“There is no doubt that nanotechnology has the potential to make the world a better place,” said Project on Emerging Nanotechnologies Chief Scientist Andrew Maynard. “But if consumers and other stakeholders are not convinced that the benefits outweigh the risks, many applications will not see the light of day. Likewise, if the benefits are unclear and the risks uncertain, the products of nanotechnology will be a hard sell.”