In pictures: Nanotechnology - Building the future from the bottom up
Tuning tubes

Carbon nanotubes are sheets of graphite (carbon) that are rolled up on themselves.

Just a few nanometres across, these ultra-strong cylinders can make composite coatings for car bumpers that better hold their shape in a crash.

The tubes can also absorb hydrogen, which should enable more efficient storage of future fuels.

Click below for more images
1 2 3 4 5 6 7 8 9