Evidence map›Paper›PMID 21282623›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Real-time mapping of a hydrogen peroxide concentration profile across a polymicrobial bacterial biofilm using scanning electrochemical microscopy.

Xiuhui Liu, Matthew M Ramsey, Xiaole Chen, Dipankar Koley, Marvin Whiteley, Allen J Bard

Open access · bronzeAbstract readComparative StudyEvaluation Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
6.2field-weighted citation impact, top 2% of its field
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

69 citing papers in PubMed, 173 citations in OpenAlex.

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  13. AIMS microbiology · 2023
    Review
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9 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Xiuhui LiuCenter for Electrochemistry, Department of Chemistry and Biochemistry, University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA.
Matthew M Ramsey
Xiaole Chen
Dipankar Koley
Marvin Whiteley
Allen J Bard
The University of Texas at Austin · US

Funding

Metabolite sensing in a polymicrobial infectionR01DE020100 · NIDCR · UNIVERSITY OF TEXAS AT AUSTIN · PI WHITELEY, MARVIN · 2011 to 2022
$3.3M
The molecular mechanisms of bacterial outer membrane vesicle formationR01AI075068 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI WHITELEY, MARVIN · 2007 to 2011
$1.8M
How interactions of oral bacteria enhance resistance to innate immunityF31DE019995 · NIDCR · UNIVERSITY OF TEXAS AT AUSTIN · PI RAMSEY, MATTHEW · 2009 to 2010
$62k
NIAID NIH HHS 5R01AI075068NIAID NIH HHS R01 AI075068NIDCR NIH HHS 5F31DE019995NIDCR NIH HHS F31 DE019995NIDCR NIH HHS R01 DE020100
6 · The paper itself

Abstract

Quantitative detection of hydrogen peroxide in solution above a Streptococcus gordonii (Sg) bacterial biofilm was studied in real time by scanning electrochemical microscopy (SECM). The concentration of hydrogen peroxide was determined to be 0.7 mM to 1.6 mM in the presence of 10 mM glucose over a period of 2 to 8 h. The hydrogen peroxide production measured was higher near the biofilm surface in comparison to Sg grown planktonically. Differential hydrogen peroxide production was observed both by fluorometric as well as by SECM measurements. The interaction between two different species in a bacterial biofilm of Sg and Aggregatibacter actinomycetemcomitans (Aa) in terms of hydrogen peroxide production was also studied by SECM. One-directional y-scan SECM measurements showed the unique spatial mapping of hydrogen peroxide concentration across a mixed species biofilm and revealed that hydrogen peroxide concentration varies greatly dependent upon local species composition.

Indexed as

BiofilmsComputer SimulationElectrochemistryFluorometryHydrogen PeroxideMicroelectrodesMicroscopy, Electron, ScanningMonitoring, PhysiologicPasteurellaceaeSpecies SpecificityStreptococcus gordoniiHydrogen Peroxide

Identifiers

PMID21282623
PMCPMC3041060
OpenAlexW2142431724

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.