Evidence map›Paper›PMID 32807956›Full record

ArticleNature methods2020

Scale-free vertical tracking microscopy.

Deepak Krishnamurthy, Hongquan Li, François Benoit du Rey, Pierre Cambournac, Adam G Larson, Ethan Li, Manu Prakash

Abstract read
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In one paragraph

Article in Nature methods, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Cilia-driven epithelial folding and unfolding in an early diverging animal.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
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  10. Article
  11. Methods and Measures for Investigating Microscale Motility.Integrative and comparative biology · 2023
    Review
  12. Thermotaxis in an apolar, non-neuronal animal.Journal of the Royal Society, Interface · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Live imaging of echinoderm embryos to illuminate evo-devo.Frontiers in cell and developmental biology · 2022
    Article
  18. Manu Prakash.Nature methods · 2020
    Article
  19. Plankton in a hamster wheel.Nature methods · 2020
    Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Deepak KrishnamurthyDepartment of Mechanical Engineering, Stanford University, Stanford, CA, USA.ORCID http://orcid.org/0000-0002-4504-1530
Hongquan LiDepartment of Bioengineering, Stanford University, Stanford, CA, USA.ORCID http://orcid.org/0000-0002-3668-5772
François Benoit du ReyDepartment of Bioengineering, Stanford University, Stanford, CA, USA.
Pierre CambournacDepartment of Bioengineering, Stanford University, Stanford, CA, USA.
Adam G LarsonDepartment of Bioengineering, Stanford University, Stanford, CA, USA.
Ethan LiDepartment of Bioengineering, Stanford University, Stanford, CA, USA.ORCID http://orcid.org/0000-0002-3041-0428
Manu PrakashDepartment of Bioengineering, Stanford University, Stanford, CA, USA. manup@stanford.edu.ORCID http://orcid.org/0000-0002-8046-8388

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

The behavior and microscale processes associated with freely suspended organisms, along with sinking particles underlie key ecological processes in the ocean. Mechanistically studying such multiscale processes in the laboratory presents a considerable challenge for microscopy: how to measure single cells at microscale resolution, while allowing them to freely move hundreds of meters in the vertical direction? Here we present a solution in the form of a scale-free, vertical tracking microscope, based on a 'hydrodynamic treadmill' with no bounds for motion along the axis of gravity. Using this method to bridge spatial scales, we assembled a multiscale behavioral dataset of nonadherent planktonic cells and organisms. Furthermore, we demonstrate a 'virtual-reality system for single cells', wherein cell behavior directly controls its ambient environmental parameters, enabling quantitative behavioral assays. Our method and results exemplify a new paradigm of multiscale measurement, wherein one can observe and probe macroscale and ecologically relevant phenomena at microscale resolution. Beyond the marine context, we foresee that our method will allow biological measurements of cells and organisms in a suspended state by freeing them from the confines of the coverslip.

Indexed as

AnimalsImage Processing, Computer-AssistedInvertebratesLarvaMicroscopyMovementPlanktonSwimmingUser-Computer Interface

Identifiers

What OpenQuestion holds

Textmetadata
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.