Evidence map›Paper›PMID 34462360›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Stretchable origami robotic arm with omnidirectional bending and twisting.

Shuai Wu, Qiji Ze, Jize Dai, Nupur Udipi, Glaucio H Paulino, Ruike Zhao

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
27.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 373 citations in OpenAlex.

  1. Article
  2. Adaptable weaving origami.Science advances · 2026
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  7. Bioinspired Morphology-Decoupled Soft Gripper with Enhanced Bidirectional Grasping Capability.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Multifunctional and Reprogrammable Magnetoactive Graphene Oxide Origami.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  13. LEGO-like Origami Robots Standardize Structure Design of Soft Robots.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  14. Article
  15. Article
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  18. Review
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3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Shuai WuDepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210.ORCID 0000-0002-3509-7418
Qiji ZeDepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210.ORCID 0000-0002-3260-8956
Jize DaiDepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210.
Nupur UdipiSchool of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332.
Glaucio H PaulinoSchool of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332 zhao.2885@osu.edu paulino@gatech.edu.ORCID 0000-0002-3493-6857
Ruike ZhaoDepartment of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210; zhao.2885@osu.edu paulino@gatech.edu.ORCID 0000-0002-9292-5267
The Ohio State University · USGeorgia Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inspired by the embodied intelligence observed in octopus arms, we introduce magnetically controlled origami robotic arms based on Kresling patterns for multimodal deformations, including stretching, folding, omnidirectional bending, and twisting. The highly integrated motion of the robotic arms is attributed to inherent features of the reconfigurable Kresling unit, whose controllable bistable deploying/folding and omnidirectional bending are achieved through precise magnetic actuation. We investigate single- and multiple-unit robotic systems, the latter exhibiting higher biomimetic resemblance to octopus' arms. We start from the single Kresling unit to delineate the working mechanism of the magnetic actuation for deploying/folding and bending. The two-unit Kresling assembly demonstrates the basic integrated motion that combines omnidirectional bending with deploying. The four-unit Kresling assembly constitutes a robotic arm with a larger omnidirectional bending angle and stretchability. With the foundation of the basic integrated motion, scalability of Kresling assemblies is demonstrated through distributed magnetic actuation of double-digit number of units, which enables robotic arms with sophisticated motions, such as continuous stretching and contracting, reconfigurable bending, and multiaxis twisting. Such complex motions allow for functions mimicking octopus arms that grasp and manipulate objects. The Kresling robotic arm with noncontact actuation provides a distinctive mechanism for applications that require synergistic robotic motions for navigation, sensing, and interaction with objects in environments with limited or constrained access. Based on small-scale Kresling robotic arms, miniaturized medical devices, such as tubes and catheters, can be developed in conjunction with endoscopy, intubation, and catheterization procedures using functionalities of object manipulation and motion under remote control.

Indexed as

BiomimeticsEquipment DesignRoboticsmagnetic actuationmultimodal deformationomnidirectional bendingorigami robotic arm

Identifiers

PMID34462360
PMCPMC8433528
OpenAlexW3198476225

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.