Graphene nanoplatelets/CeO2 nanotiles nanocomposites as effective antibacterial material for multiple drug-resistant bacteria.
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Authors
Rehman, Saliha Ur
Niazi, Robina Khan
Zulqurnain, M
Mansoor, Qaisar
Iqbal, Javed
Publication Date
2022Journal Title
Appl Nanosci
ISSN
2190-5509
Publisher
Springer Science and Business Media LLC
Pages
1-12
Language
eng
Type
Article
This Version
VoR
Metadata
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Rehman, S. U., Niazi, R. K., Zulqurnain, M., Mansoor, Q., Iqbal, J., & Arshad, A. (2022). Graphene nanoplatelets/CeO2 nanotiles nanocomposites as effective antibacterial material for multiple drug-resistant bacteria.. Appl Nanosci, 1-12. https://doi.org/10.1007/s13204-022-02422-9
Abstract
Antibacterial agents with low toxicity to normal cells, redox activity and free radical scavenging property are urgently needed to address the global health crisis. The phenomenal conducting nature of graphene is a best fit to enhance the antibacterial properties of metal oxides. In this work, CeO2 nanotiles and graphene nanoplatelets/CeO2 nanotiles nanocomposites (G/CeO2) have been synthesized by a solvothermal method. The prepared materials have been characterized using XRD, FE-SEM, EDX, and UV-visible spectroscopy techniques to investigate their crystallinity, morphology, composition, and optical bandgap energies. The CeO2 and G/CeO2 nanocomposites have also been tested for antibacterial applications. The neat CeO 2 nanotiles sample inhibits the bacterial growth of Pseudomonas aeruginosa and Staphylococcus aureus up to 14.21% and 39.53% respectively. The antibacterial activity was tremendously enhanced using 25% graphene-loaded sample (G/CeO2-II) i.e., approximately 83% loss of P. aeruginosa and 89% in case of S. aureus has been observed. This can be attributed to the unique nano-architecture, oxidative stress due to the excellent ability of reversible conversion between the two electronic states of CeO2 and the stress exerted by the planar graphene and CeO2 nanotiles. Therefore, the G/CeO2 nanocomposites can find potential application as nano-antibiotics for controlling pathogens.
Keywords
Graphene Nanoplatelets, Antibacterial Properties, Ceria Nanotiles
Identifiers
35308867, PMC8918601
External DOI: https://doi.org/10.1007/s13204-022-02422-9
This record's URL: https://www.repository.cam.ac.uk/handle/1810/336302
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