Chitosan, derived from natural sources like fish scales and fungal cell walls, forms nanoparticles (NPs) with notable antimicrobial properties. This study examines the antibacterial effects of ascorbic acid combined with nano-chitosan on Staphylococcus aureus isolates from 100 atopic dermatitis (AD) patients. Using the Vitek 2 Compact device for bacterial identification and antibiotic sensitivity testing, we found that nano-chitosan/ascorbic acid composites significantly inhibited the growth of multidrug-resistant S. aureus. The antimicrobial activity increased with higher concentrations, highlighting the potential of this natural polymer blend as an effective treatment for AD-related bacterial infections.
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Keywords: Chitosan nanoparticles, Ascorbic acid, Staphylococcus aureus, Atopic dermatitis, Antibacterial treatment