Evidence map›Paper›PMID 36271621›Full record

ArticleBiophysical journal2022

Escaping speed of bacteria from confinement.

Yuanfeng Yin, Hsin-Tzu Yu, Hong Tan, Hong Cai, Hsuan-Yi Chen, Chien-Jung Lo, Shuo Guo

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Biophysical journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Yuanfeng YinSchool of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
Hsin-Tzu YuDepartment of Physics and Center for Complex Systems, National Central University, Jhongli, Taoyuan City, Taiwan.
Hong TanSchool of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
Hong CaiSchool of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
Hsuan-Yi ChenDepartment of Physics and Center for Complex Systems, National Central University, Jhongli, Taoyuan City, Taiwan; Institute of Physics, Academia Sinica, Taipei, Taiwan; Physics Division, National Center for Theoretical Sciences, Taipei, Taiwan.
Chien-Jung LoDepartment of Physics and Center for Complex Systems, National Central University, Jhongli, Taoyuan City, Taiwan.
Shuo GuoSchool of Physical Science and Technology, ShanghaiTech University, Shanghai, China. Electronic address: guoshuo@shanghaitech.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microswimmers such as bacteria exhibit large speed fluctuation when exploring their living environment. Here, we show that the bacterium Escherichia coli with a wide range of length speeds up beyond its free-swimming speed when passing through narrow and short confinement. The speedup is observed in two modes: for short bacteria with L <20 μm, the maximum speed occurs when the cell body leaves the confinement, but a flagellar bundle is still confined. For longer bacteria (L ≥ 20 μm), the maximum speed occurs when the middle of the cell, where the maximum number of flagellar bundles locate, is confined. The two speed-up modes are explained by a vanishing body drag and an increased flagella drag-a universal property of an "ideal swimmer." The spatial variance of speed can be quantitatively explained by a simple model based on the resistance matrix of a partially confined bacterium. The speed change depends on the distribution of motors, and the latter is confirmed by fluorescent imaging of flagellar hooks. By measuring the duration of slowdown and speedup, we find that the effective chemotaxis is biased in filamentous bacteria, which might benefit their survival. The experimental setup can be useful to study the motion of microswimmers near surfaces with different surface chemistry.

Indexed as

BacteriaSwimming

Identifiers

PMID36271621
PMCPMC9748248

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.