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The effects of Mg incorporation and annealing temperature on the physicochemical properties and antibacterial activity against Listeria monocytogenes of ZnO nanoparticles

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Abstract

In this paper, Mg-doped ZnO nanoparticles were synthesized by the facile sol–gel method. The crystalline structure, characteristic absorption bands and morphology of the obtained Mg-doped ZnO nanoparticles were studied by XRD, FTIR and TEM. The thermal degradation behaviour of the samples was investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The effect of Mg concentrations and annealing temperatures on the antibacterial properties of the obtained nanoparticles was investigated in detail. The results indicated that doping Mg ions into ZnO lattice could enhance its antibacterial activity. Antibacterial assay demonstrated that Mg-doped ZnO with 7% Mg content annealed at 400 ∘C had the strongest antibacterial activity against Listeria monocytogenes (98.7%). This study indicated that the inhibition rate of ZnO nanoparticles increased with the formation of granular structure and the decrease of ZnO size due to the doping of Mg ions into the ZnO lattice.

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Authors and Affiliations

  1. Department of Microbiology, Faculty of Science, Science and Research Branch of Guilan, Islamic Azad University, Rasht, Iran

    NIMA SHADAN & KAMYAR MAZLOUM JALALI

  2. Nano Research Lab, Lahijan Branch, Islamic Azad University, P.O. Box 1616, Lahijan, Iran

    ALI ABDOLAHZADEH ZIABARI

  3. Department of Microbiology, Faculty of Science, Lahijan Branch, Islamic Azad University, Lahijan, Iran

    RAFIEH MERAAT

Authors
  1. NIMA SHADAN
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  2. ALI ABDOLAHZADEH ZIABARI
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  3. RAFIEH MERAAT
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  4. KAMYAR MAZLOUM JALALI
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Correspondence to ALI ABDOLAHZADEH ZIABARI.

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SHADAN, N., ZIABARI, A.A., MERAAT, R. et al. The effects of Mg incorporation and annealing temperature on the physicochemical properties and antibacterial activity against Listeria monocytogenes of ZnO nanoparticles. Pramana - J Phys 88, 32 (2017). https://doi.org/10.1007/s12043-016-1341-4

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  • DOI: https://doi.org/10.1007/s12043-016-1341-4

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