Bacterial biofilm, a persistent issue in healthcare equipment and typical infections, is exacerbated by the pathogenesis and antibiotic tolerance of Pseudomonas aeruginosa. This bacterium remains a significant concern in the global healthcare sector. Silver nanoparticles, with their potent antibacterial properties, have emerged as a promising solution. This study, therefore, is of utmost importance as it aims to delve into the parameters influencing the biogenic nanoparticle-assisted regulation of bacterial adherence by Pseudomonas aeruginosa. The nano-sized particles were bioengineered using Hellenia speciosa rhizome extracts, which mainly included biologically active components such as mequinol, 4-hydroxy-3-methylacetophenone, and phenol, 2,6-dimethoxy, supplemented with the formation of silver nanostructured materials. The nanoclusters were characterized by UV-Vis spectrophotometry, X-ray scattering, and scanning electron microscopy (SEM). According to a microtiter plate experiment, the nanoparticle degraded biofilms up to 94.41 % at dosages varied from 0 to 25 μg/ml. The light microscopy study and the interface architecture of biofilm suppression by electron microscopy demonstrated the nano-sized particle's potential to prevent bacterial adherence.
Keywords: AgNPs; Biofilm inhibition; Hellenia speciosa; Pseudomonas aeruginosa.
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