ArticleScientific reports2021
Chemokinesis-driven accumulation of active colloids in low-mobility regions of fuel gradients.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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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.
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.
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Who cites it
7 citing papers in PubMed, 0 citations in OpenAlex.
- Artificial chemotaxis in micro/nanomotors.Nature communications · 2026Review
- Sculpting Microbial Microenvironments: Spatiotemporal Control via Programmable Electrochemical Gradients.Journal of the American Chemical Society · 2026Review
- Glucose-Powered Ultrasmall Chemotactic Nanorobots for Retinal Degeneration Treatment.Journal of the American Chemical Society · 2025Article
- Perspective on Interdisciplinary Approaches on Chemotaxis.Angewandte Chemie (International ed. in English) · 2025Review
- Technology Roadmap of Micro/Nanorobots.ACS nano · 2025Review
- Single-Atom Colloidal Nanorobotics Enhanced Stem Cell Therapy for Corneal Injury Repair.ACS nano · 2025Article
- Machine learning-based inverse design for electrochemically controlled microscopic gradients of OProceedings of the National Academy of Sciences of the United States of America · 2022Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Many motile cells exhibit migratory behaviors, such as chemotaxis (motion up or down a chemical gradient) or chemokinesis (dependence of speed on chemical concentration), which enable them to carry out vital functions including immune response, egg fertilization, and predator evasion. These have inspired researchers to develop self-propelled colloidal analogues to biological microswimmers, known as active colloids, that perform similar feats. Here, we study the behavior of half-platinum half-gold (Pt/Au) self-propelled rods in antiparallel gradients of hydrogen peroxide fuel and salt, which tend to increase and decrease the rods' speed, respectively. Brownian Dynamics simulations, a Fokker-Planck theoretical model, and experiments demonstrate that, at steady state, the rods accumulate in low-speed (salt-rich, peroxide-poor) regions not because of chemotaxis, but because of chemokinesis. Chemokinesis is distinct from chemotaxis in that no directional sensing or reorientation capabilities are required. The agreement between simulations, model, and experiments bolsters the role of chemokinesis in this system. This work suggests a novel strategy of exploiting chemokinesis to effect accumulation of motile colloids in desired areas.
Identifiers
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Registered trials
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.