Evidence map›Paper›PMID 37196078›Full record

ArticleScience advances2023

Autonomous, untethered gait-like synchronization of lobed loops made from liquid crystal elastomer fibers via spontaneous snap-through.

Dae Seok Kim, Young-Joo Lee, Young Been Kim, Yuchen Wang, Shu Yang

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
9.4field-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

22 citing papers in PubMed, 72 citations in OpenAlex.

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  3. Physics-Informed Neural Network-Enabled Forward Prediction and Inverse Design of Ring Origami.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  9. Supramolecular Chalcogen-Bonded Shape Memory Actuators.Angewandte Chemie (International ed. in English) · 2025
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  10. Aerial Track-Guided Autonomous Soft Ring Robot.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  11. Article
  12. An Ultra-Fast Rolling Double-Helical Robot Driven by Constant Humidity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  13. Article
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  16. Review
  17. Article
  18. Article
  19. Multimodal Autonomous Locomotion of Liquid Crystal Elastomer Soft Robot.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  20. Article
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

5 authors at 2 institutions in 2 countries.

Dae Seok KimDepartment of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA.ORCID 0000-0002-7481-1434
Young-Joo LeeDepartment of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA.
Young Been KimPukyong National University, Department of Polymer Engineering, 45 Yongso-ro, Nam-gu, Busan, South Korea.
Yuchen WangDepartment of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA.ORCID 0000-0002-6710-6710
Shu YangDepartment of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA.ORCID 0000-0001-8834-3320
University of Pennsylvania · USPukyong National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The transition from one equilibrium state to another via rapid snap-through can store elastic energy and release it as kinetic energy for rapid motion as seen in Venus flytrap and hummingbird to catch insects mid-flight. They are explored in soft robotics for repeated and autonomous motions. In this study, we synthesize curved liquid crystal elastomer (LCE) fibers as the building blocks that can undergo buckling instability upon heated on a hot surface, leading to autonomous snap-through and rolling behaviors. When they are connected into lobed loops, where each fiber is geometrically constrained by the neighboring ones, they demonstrate autonomous, self-regulated, and repeated synchronization with a frequency of ~1.8 Hz. By adding a rigid bead on the fiber, we can fine-tune the actuation direction and speed (up to ~2.4 mm/s). Last, we demonstrate various gait-like locomotion patterns using the loops as the robot's legs.

Identifiers

PMID37196078
PMCPMC10191433
OpenAlexW4376869884

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.