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Molecular machines

Reinventing the wheel

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Figure 1: Wheels at the nanoscale.
Figure 2: The manner in which the wheel is translated across the copper surface can be determined by measuring the tunnelling current.

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Hla, SW. Reinventing the wheel. Nature Nanotech 2, 82–84 (2007). https://doi.org/10.1038/nnano.2007.16

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