Coating of silver nanoparticles on polyurethane film surface by green chemistry approach and investigation of antibacterial activity against S. epidermidis

Date

2022-05-01

Author

Kara, Filiz
AKSOY, EDA AYŞE
Aksoy, Serpil
Hasırcı, Nesrin

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© The Author(s) 2022.Silver nanoparticles with potential antibacterial properties are included in biomaterials for the production of medical devices, which are used for diagnoses or treatment purposes. The aim of the current study was coating the polyurethane (PU) films with silver nanoparticles (AgNPs) due to their antibacterial efficacy. PU films were first modified by chitosan (CH), treated with AgNO3 to let CH chelate with silver ions, and then treated with vitamin-C (vit C) or glucose (Glu) to reduce the adsorbed ions to atomic silver to form AgNPs. The surfaces of the films were examined by ATR-FTIR, XPS, XRD, and SEM. Chemical bond formation between CH and Ag ions and AgNPs were determined by ATR-FTIR. Meanwhile, XPS and SEM analyses proved the presence of reduced metallic silver and nanoparticles on the film surfaces, respectively. According to the SEM analyses, a homogeneous distribution of AgNPs, with sizes 99–214 nm and 37–54 nm, on the film surfaces were obtained depending on Glu or vit C reduction, respectively. The films presented excellent antibacterial performance against Gram positive Staphylococcus epidermidis (S. epidermidis). These results suggested that the mentioned green technology can be easily applied to obtain AgNP coated polymeric surfaces with very high antibacterial efficacy. Although there are some studies dealing with AgNP formation on PU sponges or fibers, to the best of our knowledge, this is the first study showing AgNP formation on the CH conjugated PU films.

Subject Keywords

antibacterial, biomaterials, Polyurethane, silver nanoparticles, surface modification

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85130512284&origin=inward
https://hdl.handle.net/11511/97946

Journal

Journal of Bioactive and Compatible Polymers

DOI

https://doi.org/10.1177/08839115221098056

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

F. Kara, E. A. AKSOY, S. Aksoy, and N. Hasırcı, “Coating of silver nanoparticles on polyurethane film surface by green chemistry approach and investigation of antibacterial activity against S. epidermidis,” Journal of Bioactive and Compatible Polymers, vol. 37, no. 3, pp. 205–219, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85130512284&origin=inward.