Future microbiology · 2026
Benzyl isothiocyanate-loaded chitosan beads: a novel strategy to combat biofilm formation by Staphylococcus aureus and Escherichia coli.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Ulusoy Seyhan, Periz Çağdaş Deniz, Kaya Kınaytürk Neslihan
Аннотация
AIMS: This study aimed to develop and evaluate chitosan beads loaded with benzyl isothiocyanate (BITC) as a novel therapeutic strategy to combat biofilm-associated infections caused by Staphylococcus aureus and Escherichia coli.
METHODS: The beads were fabricated via ionic gelation and characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and ultraviolet-visible spectrophotometry (UV-Vis). Antibacterial and antibiofilm activities of the optimal formulation BITC-loaded beads (B-Cs2) were assessed. Supporting computational analyses (molecular docking) were carried out; detailed methods and results are provided in the Supplementary Material.
RESULTS: B-Cs2 beads (10 mg) exhibited strong antibacterial activity, producing inhibition zones of 34.0 ± 1.0 mm for S. aureus and 24.0 ± 2.0 mm for E. coli. The formulation also significantly inhibited biofilm formation, reducing it by 49.3% in S. aureus and 48.2% in E. coli. Molecular docking predicted potential interactions with key virulence proteins, suggesting that BITC may disrupt distinct virulence pathways; however, further biochemical validation is required to confirm these proposed mechanisms.
CONCLUSION: BITC-loaded chitosan beads function as a dual-action system with potent antibacterial and antibiofilm properties, demonstrating significant potential for applications in clinical therapeutics and food safety.
METHODS: The beads were fabricated via ionic gelation and characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and ultraviolet-visible spectrophotometry (UV-Vis). Antibacterial and antibiofilm activities of the optimal formulation BITC-loaded beads (B-Cs2) were assessed. Supporting computational analyses (molecular docking) were carried out; detailed methods and results are provided in the Supplementary Material.
RESULTS: B-Cs2 beads (10 mg) exhibited strong antibacterial activity, producing inhibition zones of 34.0 ± 1.0 mm for S. aureus and 24.0 ± 2.0 mm for E. coli. The formulation also significantly inhibited biofilm formation, reducing it by 49.3% in S. aureus and 48.2% in E. coli. Molecular docking predicted potential interactions with key virulence proteins, suggesting that BITC may disrupt distinct virulence pathways; however, further biochemical validation is required to confirm these proposed mechanisms.
CONCLUSION: BITC-loaded chitosan beads function as a dual-action system with potent antibacterial and antibiofilm properties, demonstrating significant potential for applications in clinical therapeutics and food safety.