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A light-powered clockwork

An organogel is made of molecular motors and modulators that act cooperatively to perform a full mechanical cycle of contraction and expansion at the macroscale.

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Figure 1: Graphical illustration of a mechanical watch (left) and the mainspring winding mechanism (right).
Figure 2: A macroscopic contraction–expansion cycle completed by operating molecular motors and modulators in a polymer network.


  1. Feynman, R. P. Miniaturization 282, 295–296 (1961).

    Google Scholar 

  2. The 2016 Nobel Prize in Chemistry. (4 February 2017);

  3. Koumura, N. et al. Nature 401, 152–155 (1999).

    Article  CAS  Google Scholar 

  4. Badjić, J. D. et al. Science 303, 1845–1849 (2004).

    Article  Google Scholar 

  5. Champin, B. et al. Chem. Soc. Rev. 36, 358–366 (2007).

    Article  CAS  Google Scholar 

  6. Browne, W. R. & Feringa, B. L. Nat. Nanotech. 1, 25–35 (2006).

    Article  CAS  Google Scholar 

  7. Foy, J. T. et al. Nat. Nanotech. 12, 540–545 (2017).

    Article  CAS  Google Scholar 

  8. Klok, M. et al. J. Am. Chem. Soc. 130, 10484–10485 (2008).

    Article  CAS  Google Scholar 

  9. Li, Q. et al. Nat. Nanotech. 10, 161–165 (2015).

    Article  Google Scholar 

  10. Ruangsupapichat, N. et al. Nat. Chem. 3, 53–60 (2011).

    Article  CAS  Google Scholar 

Download references

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Correspondence to Chenfeng Ke.

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Ke, C. A light-powered clockwork. Nature Nanotech 12, 504–506 (2017).

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