Evidence map›Paper›PMID 26756120›Full record

ArticleEnvironmental science & technology2016

Response of Simulated Drinking Water Biofilm Mechanical and Structural Properties to Long-Term Disinfectant Exposure.

Yun Shen, Conghui Huang, Guillermo L Monroy, Dao Janjaroen, Nicolas Derlon, Jie Lin, Rosa Espinosa-Marzal, Eberhard Morgenroth, Stephen A Boppart, Nicholas J Ashbolt and 2 more

Abstract read
In one paragraph

Article in Environmental science & technology, 2016. 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. Isoferulic acid suppressesFrontiers in microbiology · 2026
    Article
  2. Flagellum-driven motility enhancesApplied and environmental microbiology · 2025
    Article
  3. Article
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  9. Article
  10. Antibiofilm and Antiquorum Sensing Potential ofFoods (Basel, Switzerland) · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Long-Term Effects of Residual Chlorine onFrontiers in microbiology · 2018
    Article
  17. Article
  18. Article
  19. Article
  20. 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

12 authors.

Yun Shen
Conghui Huang
Guillermo L Monroy
Dao Janjaroen
Nicolas DerlonEawag: Swiss Federal Institute of Aquatic Science and Technology , 8600 Dübendorf, Switzerland.
Jie Lin
Rosa Espinosa-Marzal
Eberhard MorgenrothEawag: Swiss Federal Institute of Aquatic Science and Technology , 8600 Dübendorf, Switzerland.
Stephen A Boppart
Nicholas J AshboltSchool of Public Health, University of Alberta , Edmonton, AB T6G 2G7 Canada.
Wen-Tso Liu
Thanh H Nguyen

Funding

Partnership for Primary Care Imaging of the EarR01EB013723 · NIBIB · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI BOPPART, STEPHEN A · 2011 to 2018
$6.4M
NIBIB NIH HHS R01 EB013723NIBIB NIH HHS R01EB013723
6 · The paper itself

Abstract

Mechanical and structural properties of biofilms influence the accumulation and release of pathogens in drinking water distribution systems (DWDS). Thus, understanding how long-term residual disinfectants exposure affects biofilm mechanical and structural properties is a necessary aspect for pathogen risk assessment and control. In this study, elastic modulus and structure of groundwater biofilms was monitored by atomic force microscopy (AFM) and optical coherence tomography (OCT) during three months of exposure to monochloramine or free chlorine. After the first month of disinfectant exposure, the mean stiffness of monochloramine- or free-chlorine-treated biofilms was 4 to 9 times higher than those before treatment. Meanwhile, the biofilm thickness decreased from 120 ± 8 μm to 93 ± 6-107 ± 11 μm. The increased surface stiffness and decreased biofilm thickness within the first month of disinfectant exposure was presumably due to the consumption of biomass. However, by the second to third month during disinfectant exposure, the biofilm mean stiffness showed a 2- to 4-fold decrease, and the biofilm thickness increased to 110 ± 7-129 ± 8 μm, suggesting that the biofilms adapted to disinfectant exposure. After three months of the disinfectant exposure process, the disinfected biofilms showed 2-5 times higher mean stiffness (as determined by AFM) and 6-13-fold higher ratios of protein over polysaccharide, as determined by differential staining and confocal laser scanning microscopy (CLSM), than the nondisinfected groundwater biofilms. However, the disinfected biofilms and nondisinfected biofilms showed statistically similar thicknesses (t test, p > 0.05), suggesting that long-term disinfection may not significantly remove net biomass. This study showed how biofilm mechanical and structural properties vary in response to a complex DWDS environment, which will contribute to further research on the risk assessment and control of biofilm-associated-pathogens in DWDS.

Indexed as

BiofilmsBiomassChloraminesChlorineDisinfectantsDisinfectionDrinking WaterElastic ModulusMicroscopy, Atomic ForceTime FactorsTomography, Optical CoherenceWater PurificationchloramineChloraminesChlorineDisinfectantsDrinking Water

Identifiers

PMID26756120
PMCPMC5135099

What OpenQuestion holds

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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.