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Bioinspired Soft Robot with Incorporated Microelectrodes
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Published on: February 28, 2020

Actuation systems in plants as prototypes for bioinspired devices.

Ingo Burgert1, Peter Fratzl

  • 1Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|March 28, 2009
PubMed
Summary

Plants use water movement and cell wall changes for organ movement, even in dead tissues. These natural mechanisms offer insights for creating biomimetic devices.

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Area of Science:

  • Plant biology
  • Biophysics
  • Materials science

Background:

  • Plants exhibit diverse mechanisms for organ movement, utilizing both living cell water dynamics and dead tissue cell wall properties.
  • Organ deformation is regulated by hierarchical tissue structures, from micrometer-scale geometry to nanoscale cell wall composition.

Purpose of the Study:

  • To review plant organ movement mechanisms.
  • To highlight recent research, focusing on non-metabolic actuation systems.
  • To explore biomimetic applications of these principles.

Main Methods:

  • Review of existing literature on plant organ movement.
  • Analysis of mechanisms involving osmotic water transport in living cells.
  • Examination of swelling/drying phenomena in dead plant tissues.
  • Investigation of hierarchical control factors (cell geometry, cell wall polymers).

Main Results:

  • Osmotic water flux drives rapid organ movement in living plant cells.
  • Swelling and drying of cell walls actuate movement in dead plant tissues.
  • Hierarchical control involves micrometer-level geometry and nanoscale cell wall properties.

Conclusions:

  • Plant organ movement relies on water dynamics and cell wall properties.
  • Non-metabolic actuation systems in plants provide design principles for biomimetics.
  • These principles can inspire the development of active technical composites and devices.