Capillary Origami: Spontaneous Wrapping of a Droplet with an Elastic Sheet
- 13 April 2007
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 98 (15), 156103
- https://doi.org/10.1103/physrevlett.98.156103
Abstract
The interaction between elasticity and capillarity is used to produce three-dimensional structures through the wrapping of a liquid droplet by a planar sheet. The final encapsulated 3D shape is controlled by tailoring the initial geometry of the flat membrane. Balancing interfacial energy with elastic bending energy provides a critical length scale below which encapsulation cannot occur, which is verified experimentally. This length is found to depend on the thickness as , a scaling favorable to miniaturization which suggests a new way of mass production of 3D micro- or nanoscale objects.
Keywords
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