Evidence map›Paper›PMID 26633329›Full record

ArticleMolecules (Basel, Switzerland)2015

Evaluation of Antimicrobial Efficiency of New Polymers Comprised by Covalently Attached and/or Electrostatically Bound Bacteriostatic Species, Based on Quaternary Ammonium Compounds.

Efstathia Kougia, Maria Tselepi, Gavriil Vasilopoulos, Georgia Ch Lainioti, Nikos D Koromilas, Denisa Druvari, Georgios Bokias, Apostolos Vantarakis, Joannis K Kallitsis

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Molecules (Basel, Switzerland), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Recent Developments in Antimicrobial Polymers: A Review.Materials (Basel, Switzerland) · 2016
    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

9 authors at 1 institution in 1 country.

Efstathia KougiaEnvironmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece. efi.84@hotmail.com.
Maria TselepiEnvironmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece. mrtselepi@gmail.com.
Gavriil VasilopoulosEnvironmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece. gavriilvasilopoulos@gmail.com.
Georgia Ch LainiotiDepartment of Chemistry, University of Patras, 26504 Patras, Greece. glainioti@upatras.gr.
Nikos D KoromilasDepartment of Chemistry, University of Patras, 26504 Patras, Greece. nikoskoromil@upatras.gr.
Denisa DruvariDepartment of Chemistry, University of Patras, 26504 Patras, Greece. druvari@upatras.gr.
Georgios BokiasDepartment of Chemistry, University of Patras, 26504 Patras, Greece. bokias@upatras.gr.
Apostolos VantarakisEnvironmental Microbiology, Department of Public Health, Medical School, University of Patras, 26504 Patras, Greece. j.kallitsis@upatras.gr.
Joannis K KallitsisDepartment of Chemistry, University of Patras, 26504 Patras, Greece. avantar@med.upatras.gr.
University of Patras · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present work a detailed study of new bacteriostatic copolymers with quaternized ammonium groups introduced in the polymer chain through covalent attachment or electrostatic interaction, was performed. Different copolymers have been considered since beside the active species, the hydrophobic/hydrophilic nature of the co-monomer was also evaluated in the case of covalently attached bacteriostatic groups, aiming at achieving permanent antibacterial activity. Homopolymers with quaternized ammonium/phosphonium groups were also tested for comparison reasons. The antimicrobial activity of the synthesized polymers after 3 and 24 h of exposure at 4 and 22 °C was investigated on cultures of Gram-negative (P. aeruginosa, E. coli) and Gram-positive (S. aureus, E. faecalis) bacteria. It was found that the combination of the hydrophilic monomer acrylic acid (AA), at low contents, with the covalently attached bacteriostatic group vinyl benzyl dimethylhexadecylammonium chloride (VBCHAM) in the copolymer P(AA-co-VBCHAM88), resulted in a high bacteriostatic activity against P. aeruginosa and E. faecalis (6 log reduction in certain cases). Moreover, the combination of covalently attached VBCHAM units with electrostatically bound cetyltrimethylammonium 4-styrene sulfonate (SSAmC16) units in the P(SSAmC16-co-VBCHAMx) copolymers led to efficient antimicrobial materials, especially against Gram-positive bacteria, where a log reduction between 4.9 and 6.2 was verified. These materials remain remarkably efficient even when they are incorporated in polysulfone membranes.

Indexed as

Anti-Bacterial AgentsBacteriaHydrophobic and Hydrophilic InteractionsMicrobial Sensitivity TestsPolymersQuaternary Ammonium CompoundsStatic ElectricityAnti-Bacterial AgentsPolymersQuaternary Ammonium Compoundsantimicrobial activitybacteriacovalent attachmentelectrostatic bindingpolymersquaternary ammonium unitssurvival

Identifiers

PMID26633329
PMCPMC6332343
OpenAlexW2184227465

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.