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Structural and Opto-Magnetic Properties of Nickel Magnesium Copper Zircon Silicate Nano-Composite for Suppress the Spread of Foodborne Pathogenic bacteria

Nano-sized nickel magnesium copper zircon silicate (1MgO: 2CuO: 4SiO2: 2.3ZrO2:0.7 NiO) nanocomposite was prepared using sol-gel alkoxide precursors and calcined at 700 °C. The characterization for the prepared nano-sized by various analytical techniques confirmed the biphasic nature with the tetragonal zirconium silicate (ZrSiO4) dominant phase and a homogeneous inter-dispersion for the obtained nanocrystallites. The UV-Vis optical analysis in the range of 200–2500 nm was operated to check the optical energy gap (Eg), optical constants (n and k), optical density (OD), skin depth (?), optical conductivity (?), and the optical electronegativity (?) of the 1MgO: 2CuO: 4SiO2: 2.3 ZrO2:0.7 NiOnanocomposite. The magnetic behavior for the nanocomposite sample was investigated. The antibacterial potential of 1MgO: 2CuO: 4SiO2: 2.3 ZrO2:0.7 NiOagainst four foodborne bacterial pathogens was appraised. Results revealed that the inhibitory consequences of tested 1MgO: 2CuO: 4SiO2: 2.3 ZrO2:0.7 NiO were greater in Gram-negative species than Gram-positive species. Results unveiled that the toxicity assay of the tested nanocomposite is biocompatible and safe for food security application. Thus, the prepared1MgO: 2CuO: 4SiO2: 2.3 ZrO2:0.7 NiOis recommended to be applied in food packaging and processing due to their high thermal stability, biocompatible and potent antimicrobial agents, and can suppress the dissemination of foodborne pathogens during food manufacturing.

Publication date: 11/10/2021

Reference: 10.1007/s12633-021-01295-x



This project has received funding from the Bio Based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 837761.