Synthesis of ceo2 nanoparticles shows enhanced antimicrobial and electrochemical activities, suggesting practical applications in healthcare.
A simple and eco‐friendly method was employed to prepare cerium oxide nanoparticles (CeO 2 NPs) using Ficus racemosa (FR) leaf extract. CeO 2 NPs formation was confirmed via various spectroscopic analysis. The Fourier Transform Infrared Spectroscopy (FT‐IR) confirms the presence of Ce‐O and O‐Ce‐O stretching vibrations in the CeO 2 NPs. The Ultraviolet‐Visible spectroscopy of CeO 2 NPs displayed a peak absorbance band between 300 and 330 nm, attributed to the charge transfer from O 2p to Ce 4f orbitals. The X‐ray diffraction (XRD) study revealed a cubic fluorite‐type crystalline structure with an average crystallite size of approximately 10 nm. Scanning electron microscopy (SEM) showed that the CeO 2 NPs exhibited a uniform spherical shape, with sizes ranging from 50 to 100 nm. Additionally, Energy Dispersive X‐ray Spectroscopy (EDS) results confirmed that the synthesized sample contains only cerium and oxygen. The electrochemical analysis of CeO 2 NPs revealed enhanced conductivity and efficient electron transfer. The antibacterial activity of CeO 2 NPs against Staphylococcus aureus and Pseudomonas aeruginosa exhibited concentration‐dependent inhibition zones, while a similar pattern of dose dependency was observed for its antifungal activity against Candida albicans , indicating their potential as antibacterial and antifungal agents.
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Karimulla et al. (2025) studied this question.
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