Fabrication and Characterization of PCL/Chitosan and PCL/AgNPs Electrospun Nanofibers for Surface Modification of Cotton Textile
Quiroga-Vergel, Angela
Clavijo-Grimaldo, Dianney
Muñoz-Gonzalez, Ana M.
Ponce-Zapata, Nubia
Casadiego-Torrado, Ciro
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Quiroga-Vergel A., Clavijo-Grimaldo D., Muñoz-Gonzalez A.M., Ponce-Zapata N., Casadiego-Torrado C., 2024, Fabrication and Characterization of PCL/Chitosan and PCL/AgNPs Electrospun Nanofibers for Surface Modification of Cotton Textile, Chemical Engineering Transactions, 114, 1105-1110.
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Abstract

In the textile industry, particularly for hospital applications, ensuring optimal mechanical properties, balanced hydrophilicity/hydrophobicity, and infection resistance is essential to prevent cross-contamination. Nanofibers offer a promising solution due to their biocompatibility, high surface-to-volume ratio, porosity, tensile strength, and functionalization potential for added properties like antimicrobial. This study electrospinning was used in the fabrication of polycaprolactone/chitosan (PCL/CHT) and polycaprolactone/silver nanoparticles (PCL/AgNPs) nano/microfibers, applied to commercial cotton fabric. Characterization via scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), confirming the presence of nano/microfibers in cotton, while tensile tests showed improved fabric strength with binder pre-treatment, maintained after coating. The finished textiles exhibited hydrophobic properties, as evidenced by contact angle measurements. Microbiological tests with both gram-negative (Escherichia coli) and gram-positive (Staphylococcus aureus) bacteria, demonstrated that AgNPs effectively inhibited bacterial growth. The antibacterial properties of PCL/CHT were lower than those of PCL/AgNPs but like those reported in the literature. These findings highlight the potential of nano/microfibers in advanced healthcare textiles.
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