Evidence map›Paper›PMID 26073316›Full record

ArticleScientific reports2015

pH-Taxis of Biohybrid Microsystems.

Jiang Zhuang, Rika Wright Carlsen, Metin Sitti

Abstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Ethics and responsibility in biohybrid robotics research.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. High-Yield Production of Biohybrid Microalgae for On-Demand Cargo Delivery.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Mechanical Coupling of Puller and Pusher Active Microswimmers Influences Motility.Langmuir : the ACS journal of surfaces and colloids · 2020
    Article
  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

3 authors.

Jiang ZhuangDepartment of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
Rika Wright Carlsen1] Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA [2] Department of Engineering, Robert Morris University, Pittsburgh, PA 15108, USA.
Metin Sitti1] Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA [2] Max Planck Institute for Intelligent Systems, Stuttgart 70569, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The last decade has seen an increasing number of studies developing bacteria and other cell-integrated biohybrid microsystems. However, the highly stochastic motion of these microsystems severely limits their potential use. Here, we present a method that exploits the pH sensing of flagellated bacteria to realize robust drift control of multi-bacteria propelled microrobots. Under three specifically configured pH gradients, we demonstrate that the microrobots exhibit both unidirectional and bidirectional pH-tactic behaviors, which are also observed in free-swimming bacteria. From trajectory analysis, we find that the swimming direction and speed biases are two major factors that contribute to their tactic drift motion. The motion analysis of microrobots also sheds light on the propulsion dynamics of the flagellated bacteria as bioactuators. It is expected that similar driving mechanisms are shared among pH-taxis, chemotaxis, and thermotaxis. By identifying the mechanism that drives the tactic behavior of bacteria-propelled microsystems, this study opens up an avenue towards improving the control of biohybrid microsystems. Furthermore, assuming that it is possible to tune the preferred pH of bioactuators by genetic engineering, these biohybrid microsystems could potentially be applied to sense the pH gradient induced by cancerous cells in stagnant fluids inside human body and realize targeted drug delivery.

Identifiers

PMID26073316
PMCPMC4466791

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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.