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<p>T his research delves into the biogenic synthesis of three distinct nanomaterials: cerium oxide, molybdenum oxide, and a mixed oxide in ratio of 1:1. Employing an eco-friendly approach utilizing turmeric extract, the study successfully characterized the nanoparticles, revealing intriguing physicochemical properties. XRD analysis unveiled high purity levels and crystal sizes ranging from 17.7 to 32.3 nm, while the transmission electron microscope revealed an average particle size of 27.8–36.1 nm, while the scanning electron microscope displayed different morphologies, confirming their potential for various applications, including adsorption processes for pollutant removal. EDX analysis confirmed the presence of key elements contributing to the nanoparticles’ surface composition. The nanomaterials demonstrated remarkable potential in various applications. The zeta potential results were satisfactory, ranging from − 23.24 to − 29.86 mV. The hydrodynamic size analysis gave values between 82.27 and 99.64 nm, with PDI values ranging from 0.37 to 0.51. ATR-FTIR was used to detect the functional groups present in the plant extract and its potential to coat organic materials onto the formed nanomaterials. They effectively removed thymol blue dye, following the Langmuir isothermal model with an adsorption capacity ranging from 19.8 to 52.8 mg/g and pseudo-second-order model, and exhibited promising antibacterial activity against both bacterial types, gram-positive of <i>Bacillus subtilis</i> and gram-negative <i>Escherichia coli</i>. Furthermore, the nanomaterials displayed selective cytotoxicity against cancer cells, on the Caco2 and Mcf7 cell lines, with varying IC<sub>50</sub> values in the range of 11.1–44.5 µg/mL. This study highlights the immense potential of these biogenically synthesized nanomaterials in water purification and medical fields, offering a sustainable and environmentally conscious approach to nanotechnology.</p>

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Hydrothermal Synthesis of MoO3, CeO2, and their Nanocomposite for Thymol Blue Adsorption, Anticancer, and Antibacterial Activity

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Basima A. A. Saleem,
  • Mohammed Ihsan Majeed,
  • Mohammed S. Saddik,
  • Soad A. Elshanawany,
  • Sedky H. A. Hassan,
  • Mohamed A. El-Mokhtar,
  • Helal F. Hetta,
  • Mostafa F. Al-Hakkani

摘要

T his research delves into the biogenic synthesis of three distinct nanomaterials: cerium oxide, molybdenum oxide, and a mixed oxide in ratio of 1:1. Employing an eco-friendly approach utilizing turmeric extract, the study successfully characterized the nanoparticles, revealing intriguing physicochemical properties. XRD analysis unveiled high purity levels and crystal sizes ranging from 17.7 to 32.3 nm, while the transmission electron microscope revealed an average particle size of 27.8–36.1 nm, while the scanning electron microscope displayed different morphologies, confirming their potential for various applications, including adsorption processes for pollutant removal. EDX analysis confirmed the presence of key elements contributing to the nanoparticles’ surface composition. The nanomaterials demonstrated remarkable potential in various applications. The zeta potential results were satisfactory, ranging from − 23.24 to − 29.86 mV. The hydrodynamic size analysis gave values between 82.27 and 99.64 nm, with PDI values ranging from 0.37 to 0.51. ATR-FTIR was used to detect the functional groups present in the plant extract and its potential to coat organic materials onto the formed nanomaterials. They effectively removed thymol blue dye, following the Langmuir isothermal model with an adsorption capacity ranging from 19.8 to 52.8 mg/g and pseudo-second-order model, and exhibited promising antibacterial activity against both bacterial types, gram-positive of Bacillus subtilis and gram-negative Escherichia coli. Furthermore, the nanomaterials displayed selective cytotoxicity against cancer cells, on the Caco2 and Mcf7 cell lines, with varying IC50 values in the range of 11.1–44.5 µg/mL. This study highlights the immense potential of these biogenically synthesized nanomaterials in water purification and medical fields, offering a sustainable and environmentally conscious approach to nanotechnology.