Evidence map›Paper›PMID 41686879›Full record

ArticlePloS one2026

Antimicrobial and antioxidant activities of neem assisted silver-modified zeolite X synthesized from kaolin.

Ralph Kwakye, Grace Boakye, Bright Yaw Vigbedor, Albert Aniagyei, Bernard Owusu Asimeng, Boniface Yeboah Antwi, David Neglo, Salifu Nanga

Abstract read
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Isolation, purification and characterization of betulinic acid derivative from the root bark ofInternational journal of biochemistry and molecular biology · 2026
    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

8 authors.

Ralph KwakyeBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.ORCID https://orcid.org/0000-0001-9690-7325
Grace BoakyeBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.
Bright Yaw VigbedorBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.
Albert AniagyeiBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.
Bernard Owusu AsimengBiomaterials Engineering Department, School of Engineering Sciences, University of Ghana, Legon, Ghana.
Boniface Yeboah AntwiInstitute of Industrial Research, Council for Scientific, and Industrial Research, Legon, Ghana.
David NegloBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.
Salifu NangaBasic Science Department, School of Basic and Biomedical Sciences, University of Health and Allied Sciences, Ho, Ghana.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zeolite X was synthesized from kaolin and then modified using (Azadirachta indica) neem together with silver nitrate solution by ion exchange. X-ray diffraction confirmed a highly crystalline FAU framework characterised by a low angle reflection, which showed that silver incorporation did not alter the zeolite structure. Scanning Electron Microscopy (SEM) revealed a well-defined polyhedral crystal for zeolite X, whiles the Ag-zeolite X exhibited increased surface heterogeneity and agglomeration. Fourier Transform Infrared (FT-IR) and Raman Spectroscopy further confirmed framework retention, with band broadening attributed to the partial substitution of Na⁺ by Ag+ within the zeolite lattice. The antimicrobial activity of zeolite X, Ag-zeolite X, were evaluated against Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Enterococcus faecalis, Candida albicans, Aspergillus niger strains by Minimum Inhibition Concentration (MIC) and Minimum Bacterial/fungal Concentration (MBC/MFC) Assays. The antioxidant properties were evaluated using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-Azino-bis (3-ethylbenzothialine-6-sulfonic acid (ABTS) radical scavenging assays. The unmodified zeolite X showed weak activity (MIC, MBC, MFC > 1 mg/mL, R > 4) whilst the Ag-zeolite X showed strong antimicrobial activity (MIC = 0.5-1.0 mg/mL, MBC, MFC = 0.5-2 mg/mL, R ≤ 4) across all tested strains. Antioxidant activity assessed using DPPH and ABTS radical scavenging assays showed significantly enhanced antioxidant performance for Ag-zeolite X compared to unmodified zeolite X, particularly in the ABTS assay. These findings demonstrate that neem-assisted silver modification enhances the bioactivity of kaolin-derived zeolite X while preserving its crystalline framework, supporting its potential application in biomedical, food packaging, and water treatment systems.

Indexed as

Anti-Infective AgentsAntioxidantsAzadirachtaKaolinSilverZeolitesBacteriaBiphenyl CompoundsCandida albicansEscherichia coliMicrobial Sensitivity TestsPicratesSpectroscopy, Fourier Transform InfraredStaphylococcus aureusX-Ray Diffraction1,1-diphenyl-2-picrylhydrazylAnti-Infective AgentsAntioxidantsBiphenyl CompoundsKaolinPicratesSilverZeolites

Identifiers

PMID41686879
PMCPMC12904421

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.