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Updated: Jun 9, 2025

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

Untethered bistable origami crawler for confined applications.

Catherine Jiayi Cai^1,2,3,4, Hui Huang^2,5, Hongliang Ren^6,7

¹Department of Biomedical Engineering, National University of Singapore, Singapore, 117575, Singapore.

Communications Engineering

|October 31, 2024

Summary

This study introduces a bistable origami crawler with untethered shape-morphing capabilities. This magnetic crawler navigates confined spaces and performs tasks like microneedle insertion, expanding origami applications.

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Last Updated: Jun 9, 2025

Folding and Characterization of a Bio-responsive Robot from DNA Origami

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Published on: December 3, 2015

Designing a Bio-responsive Robot from DNA Origami

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Published on: July 8, 2013

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Area of Science:

Robotics
Materials Science
Mechanical Engineering

Background:

Magnetically actuated origami crawlers offer robust locomotion in confined spaces.
Current crawlers are limited to passive functionalities, restricting their application scope.

Purpose of the Study:

To develop a bistable origami crawler capable of active shape-morphing for enhanced functionalities.
To enable untethered reconfiguration between locomotion and load-bearing states using magnetic fields.

Main Methods:

Utilized a modified bistable V-fold origami crease pattern as the crawler's fundamental unit.
Integrated internal permanent magnets for untethered shape-morphing.
Employed external magnetic field modulation to control crawler reconfiguration.

Main Results:

Demonstrated bi-directional, out-of-plane crawling in confined environments via friction anisotropy.
Successfully reconfigured the crawler from an undeployed locomotion state to a deployed load-bearing state.
Showcased the crawler's ability to perform microneedle insertion in confined spaces.

Conclusions:

Incorporating bistability into origami mechanisms significantly expands their capabilities for space-constrained applications.
The proposed bistable origami crawler offers a versatile platform for locomotion and active task execution.