Antibacterial silver nanoparticle coating on oxo-biodegradable polyethylene film surface using modified polyethylene and corona discharge
- 193 Downloads
This work compares the deposition of antimicrobial silver nanoparticles (AgNP) on oxo-biodegradable polyethylene (OB-PE) film surface by two methods: one by using blends of polyethylene (OB-PE) with maleic anhydride-modified PE (PEgMA) with two different molecular weights at various blend ratios and other by the OB-PE surface treatment with corona discharge at various treatment conditions. The surface of OB-PE film was treated by corona discharge and then both corona-treated film and OB-PE/PEgMA blend film were immersed in a colloidal solution of silver nanoparticles that were synthesized by chemical reduction of silver nitrate using ultrasound radiation. The efficiency of each surface treatment for surface modification was evaluated by FTIR-ATR spectrometry and contact angle determinations. The attachment of AgNP on OB-PE films was evaluated by UV–Vis and atomic absorption spectroscopy, STEM, XRD and antifungal efficiency. Both surface modifications induced the formation of polar groups that attached more AgNP on the OB-PE surface. Corona-treated films showed better silver attachment and antimicrobial activity but with lower mechanical properties apparently attributed to the initiation of polymer degradation by the corona discharge. The antimicrobial determinations indicated that these nanocomposite films could have different antimicrobial activity against Aspergillus niger depending on the PEgMA used and corona discharge conditions. The observed results could be applied to the design of industrial OB-PE films for packaging.
KeywordsSilver/polyethylene nanocomposites Surface modification Antibacterial properties Packaging films Oxo-biodegradable films
The authors gratefully acknowledge the financial support of CONACyT through Projects CB-104865 and CB-222805. The authors wish to thank the National Laboratory of Graphene (CONACYT-232753) and REDINMAPLAS for the facilities support. The authors also wish to thank J. A. Mercado-Silva, M. R. Rangel, M. Lozano-E, B. Huerta, G. Méndez-P, M. Teresa-Rodriguez, M. L. Guillen, Silvia-Torres, I. O. Solís de la Peña, José L. Rivera, Francisco-Zendejo, Mario-Palacios, Rodrigo-Cedillo, Jesus-Rodrıguez, L. Enrique-Reyes, Alejandro-Espinoza, Sergio-Zertuche, Fabian-Chavez, Adán-Herrera, Hugo-Jiménez, and D. Alvarado for their technical and informatics support.
- 5.de Carvalho CL, Silveira AF, Rosa DS (2013) A study of the controlled degradation of polypropylene containing pro-oxidant agents. SpringerPlus 2–623:1–11Google Scholar
- 6.Emamifar A (2011) Applications of antimicrobial polymer nanocomposites in food packaging Adv. In: Hashim A (ed) Nanocomp. Tech. InTech, Rijeka, pp 299–318Google Scholar
- 12.Sanchez-Valdes S, Ramırez-Vargas E, Ortega-Ortiz H, Ramos-deValle LF, Mendez-Nonell J, Mondragon-Chaparro M, Neira-Velazquez G, Yañez-Flores I, Meza-Rojas DE, Lozano-Ramirez T (2012) Silver nanoparticle deposition on hydrophilic multilayer film surface and its effect on antimicrobial activity. J Appl Polym Sci 123:2643–2650CrossRefGoogle Scholar
- 21.Sanchez-Valdes S, Ortega-Ortiz H, Ramos-de Valle LF, Medellin-Rodriguez FJ, Guedea-Miranda R (2009) Mechanical and antimicrobial properties of multilayer films with a polyethylene/silver nanocomposite layer. J Appl Polym Sci 111:953–962Google Scholar
- 31.Japanese Industrial Standard JIS Z 2801 (2010) Test for antibacterial activity and efficacy. Japanese Standards Asociation, Tokyo, JapanGoogle Scholar
- 34.Sileikaite A, Puiso J, Prosycevas I (2006) Analysis of silver nanoparticles produced by chemical reduction of silver salt solution. Mater Sci 12:287–291Google Scholar