Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential
El-Zahed, M., Kiwaan, H., Farhat, A., Moawed, E., El-Sonbati, M. (2023). Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential. EKB Journal Management System, 66(1), 31-36. doi: 10.21608/ejchem.2022.125302.5573
Mohamed M. El-Zahed; Hala A. Kiwaan; Asmaa A.M. Farhat; Elhossein A. Moawed; Mervat A. El-Sonbati. "Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential". EKB Journal Management System, 66, 1, 2023, 31-36. doi: 10.21608/ejchem.2022.125302.5573
El-Zahed, M., Kiwaan, H., Farhat, A., Moawed, E., El-Sonbati, M. (2023). 'Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential', EKB Journal Management System, 66(1), pp. 31-36. doi: 10.21608/ejchem.2022.125302.5573
El-Zahed, M., Kiwaan, H., Farhat, A., Moawed, E., El-Sonbati, M. Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential. EKB Journal Management System, 2023; 66(1): 31-36. doi: 10.21608/ejchem.2022.125302.5573

Application of Thiourea Polyurethane@Copper Sulfide Composite for Antibacterial Potential

Egyptian Journal of Chemistry
Volume 66, Issue 1, January 2023, Pages 31-36    PDF (751.61 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.125302.5573
Authors
Mohamed M. El-Zahed* 1; Hala A. Kiwaan2; Asmaa A.M. Farhat2; Elhossein A. Moawed2; Mervat A. El-Sonbati3
1Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, Egypt
2Chemistry Department, Faculty of Science, Damietta University, Egypt
3Environmental Sciences Department, Faculty of Science, Damietta University, Egypt
Abstract
This work synthesized a new composite by coupling copper sulfide nanoparticles and isothiouronium polyurethane foam to enhance antimicrobial activity. Fourier transform infrared (FTIR), ultraviolet-visible spectra (UV/Vis), point zero charge (pHpzc), acidic and basic sites, iodine number, methylene blue value, energy disperse (EDX), X-ray diffraction (XRD), and scan electron microscopy (SEM) were used to characterize isothiouronium polyurethane@copper sulfide foam composite (ITPU@CuS). The antibacterial activity of ITPU@CuS was tested against Gram-positive (Bacillus cereus) and Gram-negative (Pseudomonas aeruginosa). The biocidal action of ITPU@CuS against the microbial strains was significantly higher at the concentration of 150 μg/ml than at lower concentrations. Also, transmission electron microscopy (TEM) of the ITPU@CuS-treated bacteria was studied. TEM micrographs of the treated bacteria confirmed the bactericidal action of ITPU@CuS by showing malformation action, wrinkling, and bacterial cell wall damage. The obtained composite could be considered to be a promising material aimed at industry, especially in the field of food packaging, where it is effective against pathogenic microbes.
Keywords
polyurethane foam composite; copper sulfide; antibacterial activity; Bacillus cereus; Pseudomonas aeruginosa
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