Evidence map›Paper›PMID 36271078›Full record

ArticleNature communications2022

Reduced rotational flows enable the translation of surface-rolling microrobots in confined spaces.

Ugur Bozuyuk, Amirreza Aghakhani, Yunus Alapan, Muhammad Yunusa, Paul Wrede, Metin Sitti

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Membrane-Mediated Force Transduction Drives Stick-Slip Motion of Lipid Vesicles.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  5. Article
  6. Surface Rolling Active Magnetic Emulsions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  7. Review
  8. Rolling vesicles: From confined rotational flows to surface-enabled motion.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Review
  11. Microrobotic Swarms for Cancer Therapy.Research (Washington, D.C.) · 2025
    Review
  12. Review
  13. Coupling magnetic torque and force for colloidal microbot assembly and manipulation.Advanced intelligent systems (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  14. Acoustic Streaming-Induced Multimodal Locomotion of Bubble-Based Microrobots.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. 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

6 authors.

Ugur BozuyukPhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.ORCID 0000-0001-9555-2307
Amirreza AghakhaniPhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.ORCID 0000-0002-4301-4053
Yunus AlapanPhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.ORCID 0000-0003-3064-7342
Muhammad YunusaPhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.ORCID 0000-0002-3176-4332
Paul WredePhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany.ORCID 0000-0002-0702-6428
Metin SittiPhysical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569, Stuttgart, Germany. sitti@is.mpg.de.ORCID 0000-0001-8249-3854

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biological microorganisms overcome the Brownian motion at low Reynolds numbers by utilizing symmetry-breaking mechanisms. Inspired by them, various microrobot locomotion methods have been developed at the microscale by breaking the hydrodynamic symmetry. Although the boundary effects have been extensively studied for microswimmers and employed for surface-rolling microrobots, the behavior of microrobots in the proximity of multiple wall-based "confinement" is yet to be elucidated. Here, we study the confinement effect on the motion of surface-rolling microrobots. Our experiments demonstrate that the locomotion efficiency of spherical microrollers drastically decreases in confined spaces due to out-of-plane rotational flows generated during locomotion. Hence, a slender microroller design, generating smaller rotational flows, is shown to outperform spherical microrollers in confined spaces. Our results elucidate the underlying physics of surface rolling-based locomotion in confined spaces and present a design strategy with optimal flow generation for efficient propulsion in such areas, including blood vessels and microchannels.

Indexed as

RoboticsConfined SpacesHydrodynamicsLocomotionMotion

Identifiers

PMID36271078
PMCPMC9586970

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.