Antimicrobial activity of caO nanoparticles

Area of Science:

• Nanotechnology
• Microbiology
• Materials Science

Background:

• Rising prevalence of multidrug-resistant microbial infections necessitates novel antimicrobial agents.
• Metallic nanoparticles offer an innovative approach for developing new antimicrobial formulations.
• Calcium oxide nanoparticles (CaO-NPs) are explored as potential antimicrobial agents.

Purpose of the Study:

• To synthesize microwave-irradiated CaO nanoparticles.
• To characterize the physiochemical properties of CaO-NPs.
• To evaluate the antimicrobial efficacy of CaO-NPs against bacteria and yeast.

Main Methods:

• Microwave irradiation synthesis of CaO nanoparticles.
• Characterization using X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM).
• Antimicrobial activity testing against Pseudomonas aeruginosa, Staphylococcus epidermidis, and Candida tropicalis; determination of Minimum Inhibitory Concentration (MIC).

Main Results:

• Characterization confirmed well-dispersed CaO-NPs with a size distribution of 14-24 nm.
• CaO-NPs exhibited significant antimicrobial activity against Pseudomonas aeruginosa and Staphylococcus epidermidis compared to Candida tropicalis.
• The Minimum Inhibitory Concentration (MIC) ranged from 2-8 mM for tested strains.

Conclusions:

• Microwave-synthesized CaO-NPs possess notable antimicrobial properties.
• CaO-NPs effectively inhibit bacterial growth and biofilm formation.
• These nanoparticles present a potential for cost-effective, non-toxic antimicrobial drugs in skincare products.