Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 30, Issue 13, Pages 37185-37196Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-022-24914-5
Keywords
Microbial resistance; Magnetic nanoparticles; Sargassum Vulgare brown algae; Inhabitation zone; Antibacterial activity; Sodium alginate
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Magnetic nanoparticles with green cover sodium alginate and Ag, MnCoFe2O4@Sodium alginate/Ag (MCF@S-ALG/Ag) MNPs were prepared from Sargassum Vulgare algae. The structure of these nanoparticles was characterized by various techniques. The antibacterial activity of MCF@S-ALG/Ag MNPs was tested against E. coli and S. aureus bacteria, showing significant inhibition.
Magnetic nanoparticles with green cover sodium alginate and Ag, MnCoFe2O4@Sodium alginate/Ag (MCF@S-ALG/Ag) MNPs were prepared by a simple and clean method from Sargassum Vulgare brown algae. The structure of these nanoparticles was characterized by the Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), field emission-scanning electron microscope (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM). Furthermore, the antibacterial activity of MCF@S-ALG/Ag MNPs was tested for two bacteria of gram-negative (Escherichia coli (E. coli)) bacteria and gram-positive (Staphylococcus aureus (S. aureus)) bacteria. The MCF@S-ALG/Ag MNPs showed the inhibition zone 16.32 mm for S. aureus and 12.84 mm for E. coli bacteria. The minimal inhibitory concentration (MIC) and the minimal bactericidal concentration (MBC) of MCF@S-ALG/Ag MNPs for both bacteria were found 20 mu g/mL and 40 mu g/mL, respectively.
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