Evidence map›Paper›PMID 34215805›Full record

ArticleScientific reports2021

Interlaboratory study for the evaluation of three microtiter plate-based biofilm quantification methods.

Jontana Allkja, Frits van Charante, Juliana Aizawa, Inés Reigada, Clara Guarch-Pérez, Jesus Augusto Vazquez-Rodriguez, Paul Cos, Tom Coenye, Adyary Fallarero, Sebastian A J Zaat and 5 more

Abstract read
In one paragraph

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 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–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

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. A systematic review of the use of bacteriophages for in vitro biofilm control.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Phenotypic and Genomic Analysis of Swine-DerivedAnimals : an open access journal from MDPI · 2026
    Article
  6. Biofilm sensitization to breakJournal of medical microbiology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Widespread Distribution of Carbapenem-ResistantAntibiotics (Basel, Switzerland) · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Identification and Antimicrobial Potential of Marine Sponges (International journal of microbiology · 2025
    Article
  18. Article
  19. Article
  20. Lentisk (Pharmaceutics · 2024
    Article
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

15 authors.

Jontana AllkjaLEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
Frits van CharanteLaboratory of Pharmaceutical Microbiology, Ghent University, Ghent, Belgium.
Juliana AizawaLaboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium.
Inés ReigadaDrug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00790, Helsinki, Finland.
Clara Guarch-PérezDepartment of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands.
Jesus Augusto Vazquez-RodriguezDiscovery Microbiology, Aptuit (Verona) S.R.L., An Evotec Company, Verona, Italy.
Paul CosLaboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium.
Tom CoenyeLaboratory of Pharmaceutical Microbiology, Ghent University, Ghent, Belgium.
Adyary FallareroDrug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00790, Helsinki, Finland.
Sebastian A J ZaatDepartment of Medical Microbiology and Infection Prevention, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands.
Antonio FeliciDiscovery Microbiology, Aptuit (Verona) S.R.L., An Evotec Company, Verona, Italy.
Livia FerrariDiscovery Microbiology, Aptuit (Verona) S.R.L., An Evotec Company, Verona, Italy.
Nuno F AzevedoLEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
Albert E ParkerCenter for Biofilm Engineering, Montana State University, 366 Barnard Hall, Bozeman, MT, 59717, USA.
Darla M GoeresCenter for Biofilm Engineering, Montana State University, 366 Barnard Hall, Bozeman, MT, 59717, USA. darla_g@montana.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microtiter plate methods are commonly used for biofilm assessment. However, results obtained with these methods have often been difficult to reproduce. Hence, it is important to obtain a better understanding of the repeatability and reproducibility of these methods. An interlaboratory study was performed in five different laboratories to evaluate the reproducibility and responsiveness of three methods to quantify Staphylococcus aureus biofilm formation in 96-well microtiter plates: crystal violet, resazurin, and plate counts. An inter-lab protocol was developed for the study. The protocol was separated into three steps: biofilm growth, biofilm challenge, biofilm assessment. For control experiments participants performed the growth and assessment steps only. For treatment experiments, all three steps were performed and the efficacy of sodium hypochlorite (NaOCl) in killing S. aureus biofilms was evaluated. In control experiments, on the log

Indexed as

Bacteriological TechniquesAnti-Bacterial AgentsBiofilmsGentian VioletHumansOxazinesSodium HypochloriteStaphylococcal InfectionsStaphylococcus aureusXanthenesAnti-Bacterial AgentsGentian VioletOxazinesresazurinSodium HypochloriteXanthenes

Identifiers

PMID34215805
PMCPMC8253847

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.