Antimicrobial activity of Titanium dioxide and Zinc oxide nanoparticles supported in 4A zeolite and evaluation the morphological characteristic

In this study, the antimicrobial activity of titanium dioxide (TiO ), zinc oxide (ZnO), and TiO /ZnO nanoparticles supported into 4A zeolite (4A z) was assessed. Based on antimicrobial experiments, minimum inhibitory concentration (MIC ), minimum bactericidal concentration (MBC), fractional inhibito...

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Bibliographic Details
Published in:Scientific reports 2019-11, Vol.9 (1), p.17439-10, Article 17439
Main Authors: Azizi-Lalabadi, Maryam, Ehsani, Ali, Divband, Baharak, Alizadeh-Sani, Mahmood
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents - administration & dosage
Anti-Bacterial Agents - pharmacology
Antimicrobial activity
Antimicrobial agents
Crystallography, X-Ray
Disk Diffusion Antimicrobial Tests
Escherichia coli O157 - drug effects
Listeria monocytogenes
Listeria monocytogenes - drug effects
Mass Spectrometry
Metal Nanoparticles - administration & dosage
Metal Nanoparticles - ultrastructure
Microbial Sensitivity Tests
Microscopy
Microscopy, Electron
Microscopy, Electron, Scanning
Minimum inhibitory concentration
Nanocomposites
Nanoparticles
Physical characteristics
Pseudomonas fluorescens - drug effects
Scanning electron microscopy
Spectrometry, X-Ray Emission
Staphylococcus aureus - drug effects
Titanium - administration & dosage
Titanium - pharmacology
Titanium dioxide
Transmission electron microscopy
X-ray diffraction
Zeolites
Zeolites - administration & dosage
Zeolites - chemical synthesis
Zinc oxide
Zinc Oxide - administration & dosage
Zinc Oxide - pharmacology
Zinc oxides
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Summary:In this study, the antimicrobial activity of titanium dioxide (TiO ), zinc oxide (ZnO), and TiO /ZnO nanoparticles supported into 4A zeolite (4A z) was assessed. Based on antimicrobial experiments, minimum inhibitory concentration (MIC ), minimum bactericidal concentration (MBC), fractional inhibitory concentration (FIC) and disc diffusion test were determined after 24 h of contact with the prepared nanocomposites. These results are in agreements with the results of disc diffusion test. During the experiments, the numbers of viable bacterial cells of Staphylococcus aureus, Pseudomonas fluorescens, Listeria monocytogenes and Escherichia coli O :H decreased significantly. The crystallinity and morphology of nanoparticles were investigated by X-ray diffraction patterns (XRD), elemental mapping at the microstructural level by scanning electron microscopy (SEM) with energy dispersive X-ray spectrometry (EDS), and transmission electron microscopy (TEM). As a result, it was demonstrated that TiO /ZnO nanoparticles supported in 4A zeolite could lead to an optimum activity as antimicrobial agents.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-54025-0