Size‐dependent antimicrobial response of zinc oxide nanoparticles
| Autor: | Chandrasekaran Balachandran, Sinna Nadar Ramasamy, Loganathan Palanikumar |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Antifungal Agents
Materials science Analytical chemistry Metal Nanoparticles chemistry.chemical_element Nanoparticle Microbial Sensitivity Tests Zinc Diffusion Minimum inhibitory concentration Microscopy Electron Transmission X-Ray Diffraction Spectroscopy Fourier Transform Infrared Staphylococcus epidermidis Nanotechnology Particle Size Electrical and Electronic Engineering Fourier transform infrared spectroscopy Bacteria Fungi Temperature technology industry and agriculture Antibacterial Response Hydrogen-Ion Concentration Antimicrobial Anti-Bacterial Agents Electronic Optical and Magnetic Materials chemistry Particle size Zinc Oxide Antibacterial activity Biotechnology Nuclear chemistry |
| Zdroj: | IET Nanobiotechnology. 8:111-117 |
| ISSN: | 1751-875X 1751-8741 |
| DOI: | 10.1049/iet-nbt.2012.0008 |
| Popis: | Antibacterial and antifungal activities of zinc oxide nanoparticles (ZnO NPs) were investigated against infectious microorganisms. ZnO NPs were prepared by wet chemical precipitation method varying the pH values. Particle size and morphology of the as-prepared ZnO powders were characterised by X-ray diffraction, Fourier transform infrared spectroscopy and transmission electron microscope. The zone of inhibition by NPs ranged from 0 to 17 mm. The lowest minimum inhibitory concentration value of NPs is 25 µg.ml(-1) against Staphylococcus epidermidis. These studies demonstrate that ZnO NPs have wide range of antimicrobial activities towards various microorganisms. The results obtained in the authors' study indicate that the inhibitory efficacy of ZnO NPs is significantly dependent on its chosen concentration and size. Significant inhibition in antibacterial response was observed for S. epidermidis when compared with control antibiotic. |
| Databáze: | OpenAIRE |
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