article · Biointerface Research in Applied Chemistry
Tungsten trioxide is a transition metal oxide known for uses in electrochromic devices, sensors, photocatalysis, and antimicrobial treatments. To achieve controlled crystal structures and morphology, an eco-friendly and simple biological synthesis method was applied. Monoclinic tungsten trioxide nanoparticles were produced using a sodium tungstate precursor combined with an extract derived from Rhamnus prinoides leaves. Following synthesis, the resulting nanoparticle powder was analysed using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy to confirm its structural and physical characteristics. In addition, the material was tested for antibacterial performance against several bacterial pathogens. These evaluations targeted both Gram-positive strains, specifically Staphylococcus aureus and Listeria monocytogenes, and Gram-negative strains, including Escherichia coli and Salmonella typhimurium.
Developing green methods to produce metal oxide nanoparticles reduces reliance on harsh chemicals often needed in conventional chemical manufacturing. Using plant extracts provides a sustainable alternative for fabricating tungsten trioxide, a material with broad industrial and medical relevance. Testing these particles against common Gram-positive and Gram-negative bacteria helps assess their potential suitability for antimicrobial and healthcare settings.
This work represents early-stage laboratory research demonstrating the green synthesis of tungsten trioxide nanoparticles. Potential users include developers of antimicrobial coatings, surface treatments, or healthcare materials. However, because the abstract reports only that antibacterial evaluations were conducted without detailing the efficacy, and given the early experimental stage, extensive further validation and process scaling are needed before commercial use can be pursued.
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Tungsten trioxide (WO3) is a transition metal oxide exhibiting unique properties suitable for various applications as in electrochromic devices, gas sensors, photocatalysis, and antimicrobial activities. Preparation of WO3 nanostructures with controlled crystal structure and morphology is, thus, receiving greater attention. In this study, a facile and eco-friendly method was employed to successfully synthesis tungsten trioxide nanoparticles with monoclinic structure from Rhamnus prinoides plant leaf extract and sodium tungstate precursor. The obtained powder was characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Fourier Transform Infrared (FTIR) spectroscopy. Antibacterial activities of the synthesized WO3 nanoparticles were evaluated against Gram-positive and Gram-negative bacteria such as Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella typhimurium.
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DOI: 10.33263/briac121.529536
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