Little bricks
A different approach is called 'bottom-up' because you're creating bigger structures from small building blocks. For example, scientists can move nanoparticles and nanotubes to build larger structures. And chemists and biologists can grow specific molecules using building blocks of DNA or other chemicals.
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A string of buckyballs put inside a carbon nanotube.
Image: Dr A. Khlobystov, Uni of Nottingham |
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