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Origami-like unfolding of hydro-actuated ice plant seed capsules

Author

Listed:
  • Matthew J. Harrington

    (Max Planck Institute of Colloids and Interfaces)

  • Khashayar Razghandi

    (Max Planck Institute of Colloids and Interfaces)

  • Friedrich Ditsch

    (Technische Universität Dresden, Institute for Botany)

  • Lorenzo Guiducci

    (Max Planck Institute of Colloids and Interfaces)

  • Markus Rueggeberg

    (Max Planck Institute of Colloids and Interfaces)

  • John W.C. Dunlop

    (Max Planck Institute of Colloids and Interfaces)

  • Peter Fratzl

    (Max Planck Institute of Colloids and Interfaces)

  • Christoph Neinhuis

    (Technische Universität Dresden, Institute for Botany)

  • Ingo Burgert

    (Max Planck Institute of Colloids and Interfaces)

Abstract

Actuated plant materials are a source of inspiration for the design of adaptive materials and structures that are responsive to specific external stimuli. Hydro-responsive, metabolism-independent plant movements are particularly fascinating, because the extracted concepts are more amenable to transfer into engineering than those dependent on cellular activity. Here we investigate the structural and compositional basis of a sophisticated plant movement mechanism—the hydration-dependent unfolding of ice plant seed capsules. This reversible origami-like folding pattern proceeds via a cooperative flexing-and-packing mechanism actuated by a swellable cellulose layer filling specialized plant cells. Swelling is translated into a bidirectional organ movement through simple geometric constraints embedded in the hierarchical architecture of the ice plant valves. Extracted principles from this reliable and reversible actuated movement have relevance to the emerging field of 'programmable matter' with applications as far-reaching as the design of satellites and artificial muscles.

Suggested Citation

  • Matthew J. Harrington & Khashayar Razghandi & Friedrich Ditsch & Lorenzo Guiducci & Markus Rueggeberg & John W.C. Dunlop & Peter Fratzl & Christoph Neinhuis & Ingo Burgert, 2011. "Origami-like unfolding of hydro-actuated ice plant seed capsules," Nature Communications, Nature, vol. 2(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1336
    DOI: 10.1038/ncomms1336
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    Cited by:

    1. Artem Holstov & Graham Farmer & Ben Bridgens, 2017. "Sustainable Materialisation of Responsive Architecture," Sustainability, MDPI, vol. 9(3), pages 1-20, March.

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