Antimicrobial resistance of clay polymer nanocomposites |
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| Affiliation: | 1. Department of Chemical Engineering, Faculty of Engineering, King Mongkut''s University of Technology North Bangkok, 1518 Pibulsongkram Road, Bangsue, Bangkok 10800, Thailand;2. Center of Ecomaterials and Cleaner Technology, King Mongkut''s University of Technology North Bangkok, 1518 Pibulsongkram Road, Bangsue, Bangkok 10800, Thailand;3. The Petroleum and Petrochemical College, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand;1. Institute of Chemistry, Universidade Federal do Rio Grande do Sul – UFRGS, Av. Bento Gonçalves 9500, Porto Alegre, RS 91501-970, Brazil;2. Federal Institute of Rio Grande do Sul – IFRS, Campus Farroupilha, Av. São Vicente 785, Farroupilha, RS 95180-000, Brazil;3. National Research Council, Institute for Composite and Biomedical Materials, P.le E. Fermi, 1, 80155 Portici (Naples), Italy |
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| Abstract: | Antimicrobial-resistant polymeric Na+–bentonite nanocomposites were prepared by treating Na+–bentonite (Na+–Bent) with polymeric ultra-thin films of poly(diallyldimethyl ammonium chloride) (PDADMAC), poly(methylmethacrylate) (PMMA) and poly(vinylidene chloride) (PVDC) by admicellar polymerization technique. The clay polymer nanocomposites (CPNs) were characterized by several techniques including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), BET surface analysis, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). In additional, the antimicrobial resistance was studied by measuring the diameter of inhibition zone of growths of Escherichia coli and Salmonella typhimurium. The results showed an inhibitory effect of these CPN against microbial growth in inoculated samples. The CPN exhibited efficacy in the inhibition of bacterial growth. |
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