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Synthesis, characterization of silicate intercalated and evaluation of their antimicrobial activity

Sahli Fatima Zohra, Sassi Mohamed, Labbaci Abdallah, Hocine Laredj

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Int. J. Biosci.16(2), 373-381, February 2020

DOI: http://dx.doi.org/10.12692/ijb/16.2.373-381


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This study focuses on the development of antimicrobial polysilicate to clean water from pathogenic bacteria. A new silicate intercalated synthetic antibacterial is described. The layered sodium silicate kanemite was synthesized under hydrothermal conditions. The kanemite obtained is intercalated by organic molecules (alkyltrimethylammonium. The products obtained are characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The antibacterial activity of the materials obtained is evaluated by measuring the minimum inhibitory concentration (MIC) by exposing them to the two bacteria strains, i.e. Escherichia coli and Staphylococcus aureus, at different concentrations. The C16TMA-kanemite demonstrates very high antimicrobial activity against the two microorganisms tested as well as the material use in water treatment. Indeed, it exhibits a minimum inhibitory concentration of 0.05g per 5ml of physiological water during 15 minutes.


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