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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

Sequential self-folding of polymer sheets.

Ying Liu¹, Brandi Shaw¹, Michael D Dickey¹

¹Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC 27695, USA.

Science Advances

|March 10, 2017

Summary

This summary is machine-generated.

Researchers demonstrate a simple method for programming polymer sheets to self-fold into 3D objects using light. This light-activated shape transformation allows for sequential folding, enabling complex structures from 2D materials.

Keywords:

shape memory origami polymer self-folding

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Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets

Published on: November 2, 2011

Area of Science:

Materials Science
Polymer Science
Soft Robotics

Background:

Material shape is critical for function, especially in natural systems.
Existing shape-changing material strategies lack precise temporal and spatial control.
Sequential shape transformation is desired for complex structure generation and material versatility.

Purpose of the Study:

To present a simple strategy for programmed self-folding of 2D polymer sheets into 3D objects.
To demonstrate temporal and spatial control over shape transformation using external light.
To enable the creation of multiple shapes from a single starting material.

Main Methods:

Utilizing 2D polymer sheets with printed ink patterns.
Employing external light with specific wavelengths to activate ink.
Ink absorption of light generates heat, inducing strain relief and controlled folding at designated hinges.

Main Results:

Achieved programmed, sequential self-folding of polymer sheets into 3D structures.
Demonstrated precise spatial control of folding using color patterns and light wavelengths.
Showcased temporal control by selectively activating different colored inks with specific light.

Conclusions:

Developed a straightforward method for light-induced, programmed material self-folding.
The technique offers precise temporal and spatial control over shape transformation.
Potential applications include reconfigurable electronics, actuators, sensors, and deployable structures.