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The present study focused on the fabrication of molybdenum trioxide nanoparticles (MoO3) from a molybdenum complex with N-salicylideneaniline [Mo(C13H10NO)3] ligand as the precursor. The ligand was synthesized and characterized by 1 H NMR and 13 C NMR. The synthesized MoO3 nanoparticles were characterized by powder X-ray diffraction, FT-IR, UV-visi...
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... composition and quality of the material was investigated by FT-IR spectroscopy. The FT-IR spectrum of the orthorhombic phase of MoO3 nanoparticles is shown in Figure 5. The spectrum shows three strong peaks: 993 cm −1 , attributed to the terminal M=O stretching vibration, with an indicator of the layered orthorhombic MoO3 phase, 866 cm −1 to the stretching mode of oxygen in Mo-O-Mo bonds, and a broad band at 572 cm −1 to the bending vibration of oxygen and Mo. ...
Citations
... It can be found in foods such as cereal grains, cheese, leafy vegetables, legumes, milk, nuts, and organ meat. In the human body, molybdenum is stored in the bones, glands, liver, and kidneys [16]. It can also be located in the lungs, muscles, skin, and spleen, but almost 90 % of molybdenum food is removed through urine. ...
... It can also be located in the lungs, muscles, skin, and spleen, but almost 90 % of molybdenum food is removed through urine. Medical applications of molybdenum are numerous, where it can prevent dental caries, curing anaemia, enhancement of immunological reactions, and as an anticancer and antidiabetic agent [16]. Despite the fact that many applications of MoO 3 nanoparticles in various forms have been researched in biological systems over the last decade, few studies have looked at the anticancer effects of nano MoO 3 on cancer cells. ...
... Despite the fact that many applications of MoO 3 nanoparticles in various forms have been researched in biological systems over the last decade, few studies have looked at the anticancer effects of nano MoO 3 on cancer cells. As a result, research into the toxicity of MoO 3 nanoparticles to cancer cells, as well as their antibacterial and antifungal properties, would be extremely interesting [16]. In a previous study, El-Meligy et al. compared the release profiles of molybdenum and vanadium ions from phosphate glasses based on the system 50 P 2 O 5 -30 CaO -20 Na 2 O, and the effect of these ions on the drug release mechanism, but the study used phosphate glass not a borophosphate one as a drug and ions vehicle [15]. ...
... MoO 2 has been shown effective for the elimination of tumors at low doses with no reoccurrence after 28 d in vivo [129] and its use as a cofactor of metabolic enzymes, shows inherent anticancer ability [130]. Recent studies also show that the MoO 3 nanoparticles may have possible therapeutic potential against human breast cancer cells as well as promising antibacterial agents [131]. Non−stoichiometric MoO 3−x has absorption of IR light in the whole NIR region of the spectrum and shows great versatility in terms of its synthesis and functionality. ...
The family of molybdenum oxides has numerous advantages that make them strong candidates for high-value research and various commercial applications. The variation of their multiple oxidation states allows their existence in a wide range of compositions and morphologies that converts them into highly versatile and tunable materials for incorporation into energy, electronics, optical, and biological systems. In this review, a survey is presented of the most general properties of molybdenum oxides including the crystalline structures and the physical properties, with emphasis on present issues and challenging scientific and technological aspects. A section is devoted to the thermodynamical properties and the most common preparation techniques. Then, recent applications are described, including photodetectors, thermoelectric devices, solar cells, photo-thermal therapies, gas sensors, and energy storage.
In the contemporary era, microorganisms, spanning bacteria and viruses, are increasingly acknowledged as emerging contaminants in the environment, presenting significant risks to public health. Nevertheless, conventional methods for disinfecting these microorganisms are often ineffective. Additionally, they come with disadvantages such as high energy usage, negative environmental consequences, increased expenses, and the generation of harmful byproducts. The development of next-generation antifungal and antibacterial agents is dependent on newly synthesized nanomaterials with inherent antimicrobial behavior. In this study, we report an arc-discharge method to synthesize MoOx nanosheets and microbelts, followed by decorating them with ultrafine Ag nanoparticles (NPs). Scanning and transmission electron microscopies show that Ag NPs formation on the Molybdenum oxide nanostructures rolls them into nanotube caps (NTCs), revealing inner and outer diameters of approximately 19.8 nm and 105.5 nm, respectively. Additionally, the Ag NPs are ultrafine, with sizes in the range of 5–8 nm. Results show that the prepared NTCs exhibit dose-dependent sensitivity to both planktonic and biofilm cells of Escherichia coli and Candida albicans. The anti-biofilm activity in terms of biofilm inhibition ranged from 19.7 to 77.2% and 11.3–82.3%, while removal of more than 70% and 90% of preformed biofilms was achieved for E. coli and C. albicans, respectively, showing good potential for antimicrobial coating. Initial MoOx exhibits positive potential, while Ag-decorated Molybdenum oxide NTCs show dual potential effects (positive for Molybdenum oxide NTCs and negative for Ag NPs. Molybdenum oxide NTCs, with their strong positive potential, efficiently attract microbes due to their negatively charged cell surfaces, facilitating the antimicrobial effect of Ag NPs, leading to cell damage and death. These findings suggest that the synthesized NPs could serve as a suitable coating for biomedical applications.
