Highly effective antibacterial activity of lithium-doped magnesium oxide particles synthesized by the microwave-assisted hydrothermal route
| Autor: | Qizhe Tian, Guiling Ning, Siqi Zhang, Junwei Ye, Jianchu Zhong, Lei Shi, Wenjie Yuan |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Magnesium General Chemical Engineering Doping technology industry and agriculture chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Hydrothermal circulation Nanocrystalline material 020401 chemical engineering chemistry Minimum Inhibitory Concentration Test Nanometre Lithium 0204 chemical engineering 0210 nano-technology Antibacterial activity human activities Nuclear chemistry |
| Zdroj: | Powder Technology. 371:130-141 |
| ISSN: | 0032-5910 |
| DOI: | 10.1016/j.powtec.2020.05.031 |
| Popis: | Nanocrystalline magnesium oxide with different lithium doping molar contents were prepared by a microwave-assisted hydrothermal route to improve their antibacterial activity. The as-prepared MgO and Li-doped MgO possess the co-existing structure of nanometer flakes and nanometer particles with the diameter ranged from 50 to 150 nm. The antibacterial effect of Li-doped MgO against Escherichia coli and Staphylococcus aureus was tested by the minimum inhibitory concentration test and colony counting method. It was found that the doping of Li significantly improved the antibacterial activity of MgO. Among the different lithium doping molar contents of MgO, the bactericidal rate of the 3 mol% Li-doped MgO could reach to 99.9% at the concentration of 600 μg/mL, showing the best antibacterial efficiency. The antibacterial mechanism was also investigated. This work establishes guidelines on structural regulation and improvement of MgO antibacterial properties. |
| Databáze: | OpenAIRE |
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