On the 10th March 2011, the Project on Emerging Nanotechnologies (PEN) announced that it had updated its nanotech consumer products inventory, and that it continues to grow to include over 1,300 manufacturer-identified, nanotechnology-enabled products that have entered the commercial marketplace around the world. The most recent update to the group's five-year-old inventory reflects the continuing use of the nanoscale materials in everything from conventional products like sports equipment to more unique items such as self-cleaning window treatments.
It is important to note that the PEN consumer products inventory includes products that have been identified by their manufacturer or a credible source as being nanotechnology-based. This means that the product may in some instances not in fact include nanoscale materials or be the product of a nanotechnology. The update also identifies products that were previously sold, but that may no longer be available on the market. It remains the most comprehensive and widely used source of information on nanotechnology-enabled consumer products in the world.
Health and fitness items continue to dominate the PEN inventory, representing 56 percent of products listed. More products are based on nanoscale silver used for its antimicrobial properties, than any other nanomaterial. According to PEN, 313 products (24 percent of the inventory) use silver nanoparticles. The updated inventory includes products from over 30 countries, including the U.S., China, Canada, Germany, and India.
PEN's news release seems to suggest that the announcement of the update inventory was timed to coincide with the U.S.-EU workshop.