Answer:
Carbon nanotubes for stain resistant textiles.
Explanation:
Nanotubes are fibers created at the nano (billionths of a meter) scale and can be designed to have special properties of stain resistance. Nano technology is done at scales larger than molecular scales. Picotechnology is done at the atomic scale. Microchips for computers are small but done on a larger micro scale, millionths of a meter.
