The Woodrow Wilson International Center for Scholars, a think tank based in Washington DC did a survey and found that there are more commercially available nanotech products.

Maynard and his co-workers found 212 products that use nanotechnology. This is double the number found by a similar survey carried out last year by EmTech Research, a pro-industry research group based in Ann Arbor, Michigan. Nearly half of these products were creams, cosmetics and supplements, designed to be applied to the skin or taken orally.

Nanobio is but a small subset of nanotech, but the increasing commercial viability has to be a good sign for the field.

Nature article (subscription required).