Evidence map›Paper›PMID 30700714›Full record

ArticleNature communications2019

Shape-directed rotation of homogeneous micromotors via catalytic self-electrophoresis.

Ada M Brooks, Mykola Tasinkevych, Syeda Sabrina, Darrell Velegol, Ayusman Sen, Kyle J M Bishop

Abstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing 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

38 citing papers in PubMed.

  1. Tactic Behaviors in Asymmetric Pacman Particles.Small (Weinheim an der Bergstrasse, Germany) · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. MOF Coating Enhances the Ion Tolerance of Micromotors.Angewandte Chemie (International ed. in English) · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Reconfigurable homochiral colloidal clusters assembled under orthogonally applied electric and magnetic fields.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  10. Photothermal Cavitation-Driven Micromotor to Penetrate Cell Membrane.Journal of the American Chemical Society · 2025
    Article
  11. Article
  12. Article
  13. Osmotic and phoretic competition explains chemotaxic assembly and sorting.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Achieving Control in Micro-/Nanomotor Mobility.Angewandte Chemie (International ed. in English) · 2023
    Review
  19. Article
  20. Review
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.

Ada M BrooksDepartment of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Mykola TasinkevychCentro de Fisica Teórica e Computacional, Departamento de Fisica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande P-1749-016, Lisboa, Portugal.
Syeda SabrinaDepartment of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Darrell VelegolDepartment of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA.
Ayusman SenDepartment of Chemistry, Pennsylvania State University, University Park, PA, 16802, USA. asen@psu.edu.
Kyle J M BishopDepartment of Chemical Engineering, Columbia University, New York, NY, 10027, USA. kyle.bishop@columbia.edu.ORCID 0000-0002-7467-3668

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pursuit of chemically-powered colloidal machines requires individual components that perform different motions within a common environment. Such motions can be tailored by controlling the shape and/or composition of catalytic microparticles; however, the ability to design particle motions remains limited by incomplete understanding of the relevant propulsion mechanism(s). Here, we demonstrate that platinum microparticles move spontaneously in solutions of hydrogen peroxide and that their motions can be rationally designed by controlling particle shape. Nanofabricated particles with n-fold rotational symmetry rotate steadily with speed and direction specified by the type and extent of shape asymmetry. The observed relationships between particle shape and motion provide evidence for a self-electrophoretic propulsion mechanism, whereby anodic oxidation and cathodic reduction occur at different rates at different locations on the particle surface. We develop a mathematical model that explains how particle shape impacts the relevant electrocatalytic reactions and the resulting electrokinetic flows that drive particle motion.

Identifiers

PMID30700714
PMCPMC6353883

What OpenQuestion holds

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Registered trials

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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.