Synthesis and Bioactivity of Reduced Graphene Oxide/Alumina‐Noble Metal Nanocomposite Flakes |
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| Authors: | Agnieszka Maria Jastrzębska Joanna Karcz Ewa Karwowska Alicja Fiedorczuk Andrzej Olszyna |
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| Affiliation: | 1. Faculty of Materials Science and Engineering, Warsaw University of Technology, Warszawa, Poland;2. Faculty of Environmental Engineering, Warsaw University of Technology, Warszawa, Poland;3. Institute of Ceramics and Building Materials, Post?pu 9, Warszawa, Poland |
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| Abstract: | The aim of this study was to describe the modification of the bioactivity of Al2O3‐noble metal (Me = Ag, Au, or Pd) composite nanoparticles by the addition of graphene oxide and the formation of a RGO/Al2O3‐Me nanocomposite system. The nanocomposite flakes and Al2O3‐Me composite nanoparticles were widely characterized. The antibacterial effect was observed only for Al2O3‐Ag composite nanoparticles and RGO/Al2O3‐Ag nanocomposite flakes, while, in the case of RGO/Al2O3‐Ag, a more evident antibacterial effect against Staphylococcus aureus bacteria was observed compared with Al2O3‐Ag. In the case of other noble metals (Au, Pd), a slight growth‐stimulating effect was revealed for particular bacterial strains. |
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| Keywords: | nanocomposites alumina ceramic– metal systems |
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