Preparation and characterization of antibacterial nano cerium oxide/chitosan/hydroxyethylcellulose/polyethylene glycol composite films

Ezgi Kızılkonca, Emrah Torlak, F. Bedia Erim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

Due to the rapidly increasing biological applications and antibacterial properties of versatile nano cerium oxide particles, the effects of these particles on chitosan-based films were investigated. Chitosan-based composite films with and without cerium oxide nanoparticles (NPs) were prepared by a casting method. Hydroxyethylcellulose (HEC) was used for the flexibility of films, and polyethylene glycol (PEG) was used as a plasticizer in the blending stage of film preparation. Characterizations of films were done by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analyzer (TGA), and dynamic mechanical analyzer (DMA). Cerium oxide nanoparticle incorporation enhanced the antibacterial activity of chitosan-based films against Escherichia coli and Staphylococcus aureus. This composite film is proposed as packaging or coating material because of its flexibility, antibacterial efficacy, and good mechanical strength.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalInternational Journal of Biological Macromolecules
Volume177
DOIs
Publication statusPublished - 30 Apr 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The research was done at Istanbul Technical University, Capillary Electrophoresis, and Biopolymer Applications Research Laboratory. The research facilities of the laboratory are covered by the Research Foundation of Istanbul Technical University. The authors sincerely thank Polisan Kansai Paint Industry R&D Center for supplying materials and providing the necessary facilities for the tests.

FundersFunder number
Biopolymer Applications Research Laboratory
Istanbul Teknik Üniversitesi

    Keywords

    • Coating
    • Composites
    • Nanoparticles

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