Eco-friendly nanocomposites derived from geranium oil and zinc oxide in one step approach

Al-Jumaili, Ahmed, Mulvey, Peter, Kumar, Avishek, Prasad, Karthika, Bazaka, Kateryna, Warner, Jeffrey, and Jacob, Mohan V. (2019) Eco-friendly nanocomposites derived from geranium oil and zinc oxide in one step approach. Scientific Reports, 9. 5973.

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Nanocomposites offer attractive and cost-effective thin layers with superior properties for antimicrobial, drug delivery and microelectronic applications. This work reports single-step plasmaenabled synthesis of polymer/zinc nanocomposite thin films via co-deposition of renewable geranium essential oil-derived polymer and zinc nanoparticles produced by thermal decomposition of zinc acetylacetonate. The chemical composition, surfaces characteristics and antimicrobial performance of the designed nanocomposite were systematically investigated. XPS survey proved the presence of ZnO in the matrix of formed polymers at 10 W and 50 W. SEM images verified that the average size of a ZnO nanoparticle slightly increased with an increase in the power of deposition, from approximately 60 nm at 10 W to approximately 80 nm at 50 W. Confocal scanning laser microscopy images showed that viability of S. aureus and E. coli cells significantly reduced on surfaces of ZnO/polymer composites compared to pristine polymers. SEM observations further demonstrated that bacterial cells incubated on Zn/Ge 10 W and Zn/Ge 50 W had deteriorated cell walls, compared to pristine polymers and glass control. The release of ZnO nanoparticles from the composite thin films was confirmed using ICP measurements, and can be further controlled by coating the film with a thin polymeric layer. These ecofriendly nanocomposite films could be employed as encapsulation coatings to protect relevant surfaces of medical devices from microbial adhesion and colonization.

Item ID: 58196
Item Type: Article (Research - C1)
ISSN: 2045-2322
Keywords: nanocompsites; antimicrobial; microbial adehesion; Eco-friendly;
Copyright Information: Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Cre-ative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not per-mitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Funders: Ministry of Higher Education and Scientific Research, Iraq, James Cook University Postgraduate Research Scheme
Date Deposited: 01 May 2019 07:37
FoR Codes: 40 ENGINEERING > 4003 Biomedical engineering > 400302 Biomaterials @ 100%
SEO Codes: 92 HEALTH > 9299 Other Health > 929999 Health not elsewhere classified @ 100%
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