An axle-shaped molecule pumps charged rings from solution into an alkyl collection unit, a mechanism that, in two repetitive cycles, takes the system increasingly further from equilibrium.
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Goldup, S. Two steps uphill. Nature Nanotech 10, 488–489 (2015). https://doi.org/10.1038/nnano.2015.116
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DOI: https://doi.org/10.1038/nnano.2015.116
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