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Open AccessArticle

Surface Modification of Polyester-Fabric with Hydrogels and Silver Nanoparticles: Photochemical Versus Gamma Irradiation Methods

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Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana 22000, Mexico
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CONACyT-Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana 22000, Mexico
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Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de Mexico 04510, Mexico
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Departamento de Innovación Biomédica, Centro de Investigación Científica y Educación Superior de Ensenada, Ensenada 22860, Mexico
*
Author to whom correspondence should be addressed.
Materials 2019, 12(20), 3284; https://doi.org/10.3390/ma12203284
Received: 28 June 2019 / Revised: 25 July 2019 / Accepted: 26 July 2019 / Published: 10 October 2019
A Gamma irradiation and photochemical crosslinking/grafting of poly(2-hydroxyethyl methacrylate) (PHEMA) and poly(2-hydroxyethyl methacrylate-co-poly(ethylene glycol) methacrylate) (poly(HEMA-co-PEGMA)) hydrogels onto polyethyleneterephtalate fabric (PET) surfaces were evaluated, in order to obtain a hydrophilic homogeneous coating onto PET fabrics. The materials were characterized by FTIR-ATR, SEM, EDS, and thermal analysis. Furthermore, silver nanoparticles (AgNPs) were loaded by in situ reduction of AgNO3, and its antibacterial activity against Staphylococcus aureus and Escherichia coli was determined. Results showed a ticker coating of hydrogel using gamma radiation and stronger in deep modification of the fibers; however, by the photochemical method, a thin coating with good coverage of PET surface was obtained. The differences in hydrophilicity, thermal properties, and antibacterial activity of the coated fabrics by using both methods were rather small. View Full-Text
Keywords: graft polymerization; surface modification; hydrogels; gamma irradiation; silver nanoparticles; antibacterial activity graft polymerization; surface modification; hydrogels; gamma irradiation; silver nanoparticles; antibacterial activity
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Montoya-Villegas, K.A.; Ramírez-Jiménez, A.; Licea-Claverie, Á.; Pérez-Sicairos, S.; Bucio, E.; Bernáldez-Sarabia, J.; Licea-Navarro, A.F. Surface Modification of Polyester-Fabric with Hydrogels and Silver Nanoparticles: Photochemical Versus Gamma Irradiation Methods. Materials 2019, 12, 3284.

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