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Mysoon Mahmood Fakhri Al-Ansari/ ميسون محمود فخري الأنصاري

Associate Professor

وراثة جزيئية وبيولوجية Associate Prof., Molecular Genetics & Biology/Botany & Microbiology

كلية العلوم
3rd Floor, Office# 300، قسم النبات والأحياء الدقيقة، كلية العلوم
المنشورات
مقال فى مجلة

In vitro analyses of cerium oxide nanoparticles in degrading anthracene/fluorene and revealing the antibiofilm activity against bacteria and fungi

Anthracene، Candida albicans، Cerium dioxide nanoparticle، Fluorene Photocatalytic Serratia marcesce

A sol-gel method was used to synthesize the cerium dioxide nanoparticles. The nanoparticles formed were then characterized with UV-visible spectrophotometry, Fourier Transform Infrared Spectrophotometer (FTIR), SEM-EDAX, XRD, and Dynamic Light Scattering (DLS). The UV-visible absorbance at 282nm and characteristic peak at 600-4000cm-1 provided insight into the formation of cerium dioxide nanoparticles using a chemical method. SEM analysis and EDAX analysis confirmed nanoparticle formation and elements within the nanoparticles based on their irregular morphology. The hydrodynamic size obtained from the DLS analysis was 178.4nm and the polydispersity was 0.275nm. Furthermore, XRD results confirmed the crystalline nature of cerium dioxide nanoparticles. Using batch adsorption as a method, the effect of concentration of Polycyclic Aromatic Hydrocarbons (PAH), adsorbent concentration, pH, and irradiation source was investigated. Under UV light conditions, 10mug/mL cerium dioxide nanoparticle at pH 5 degraded 2mug/mL of PAH (anthracene and fluorene). Consequently, the synthesized cerium dioxide nanoparticles were effective photocatalysts. For anthracene and fluorene, kinetic studies showed the degradation process followed pseudo-second-order kinetics and Freundlich isotherms. Cerium oxide also exhibited significant antimicrobial and antibiofilm activity against bacteria and fungi. As a result, the cerium dioxide nanoparticle has proved to be a highly effective photocatalytic tool for the degradation of PAHs and exhibits strong antimicrobial activity.

مزيد من المنشورات
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The present work attempts to discover an alternative to conventional medications from organic biomass that can be utilized for various therapeutic applications.

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A sol-gel method was used to synthesize the cerium dioxide nanoparticles. The nanoparticles formed were then characterized with UV-visible spectrophotometry, Fourier Transform Infrared…

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Breast cancer is the most prevalent form of cancer among women. The microenvironment of a cancer tumor is surrounded by various cells, including the microbiota. An imbalance between microbes and…

2023