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Updated: Jun 22, 2026
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Assembly of Cell Mimicking Supported and Suspended Lipid Bilayer Models for the Study of Molecular Interactions
Published on: August 3, 2021
Hygromorphs: from pine cones to biomimetic bilayers.
1School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
Journal of the Royal Society, Interface
|July 3, 2009
Summary
This study quantifies the shape-changing mechanics of natural and artificial hygromorphs, like pine cones. Findings reveal principles for designing responsive biomimetic materials and devices.
Area of Science:
- Multidisciplinary science involving physics, biology, and materials science.
Background:
- Hygromorphs are objects that change shape in response to humidity.
- Natural examples like pine cones open when dry and close when wet.
- Understanding these shape changes is key to biomimicry.
Purpose of the Study:
- To quantify the geometry, mechanics, and dynamics of hygromorph shape changes.
- To develop theories explaining hysteretic humidity-response dynamics.
- To explore biomimetic applications using artificial hygromorphs.
Main Methods:
- Analyzing pine cone structure, mechanics, and dynamics at multiple scales.
- Developing a scaling theory for hysteretic opening and closing.
- Investigating bilayer hygromorphs made of paper and polymer.
- Coupling fluid transport, evaporative flux, mechanics, and geometry in theoretical models.
Main Results:
- Quantified cell, tissue, and organ-level responses in pine cones.
- Developed a scaling theory to explain hysteretic dynamics.
- Demonstrated similar humidity-responsive behavior in artificial bilayer hygromorphs.
- Showcased a biomimetic artificial flower with controllable blooming.
Conclusions:
- The study provides a unified framework for understanding natural hygromorphs.
- The findings enable the design of novel biomimetic materials with tunable humidity responses.
- Artificial hygromorphs offer potential for smart materials and devices.
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