| Issue |
BIO Web Conf.
Volume 194, 2025
International Scientific Conference on Biotechnology and Food Technology (BFT-2025)
|
|
|---|---|---|
| Article Number | 01072 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/bioconf/202519401072 | |
| Published online | 14 November 2025 | |
Biogenic MnO₂ nanoparticles for antibacterial dental application
1 Department of Physics, College of Science, University of Basrah, Iraq
2 Al-Iraqia University, Baghdad, Iraq
3 Department of Radiology, College of Dentistry, Aliraqia University, Baghdad, Iraq
4 Department of Clinical and Laboratory Sciences, College of Pharmacy, Kufa University, Najaf, Iraq
* Corresponding author: alaa.m.naser@aliraqia.edu.iq
This study explores the biological synthesis and antibacterial activity of manganese dioxide (MnO₂) nanoparticles for potential use in dental infection diagnostics and control. MnO₂ nanoparticles were synthesized using an eco-friendly biogenic method based on leek ( Allium ampeloprasum) leaf extract, serving as a natural reducing and stabilizing agent. Structural and morphological characterization confirmed the rhombohedral crystalline phase and compact nanostructure of the particles through X-ray diffraction and field-emission scanning electron microscopy analyses. Bacterial isolates from dental patients were identified and tested for susceptibility to MnO₂ nanoparticles. The nanoparticles exhibited strong antibacterial effects, with higher concentrations resulting in a significant increase in bacterial cell death. These findings highlight the biological potential of green-synthesized MnO₂ nanoparticles as sustainable bio- nanomaterials for diagnostic and antimicrobial applications in oral health management.
© The Authors, published by EDP Sciences, 2025
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