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Research Article

Bovine serum albumin-mediated synthesis and quorum sensing inhibitory properties of Ag–Ag2S nanoparticles

    Mohammadreza Ghaffarlou

    Department of Chemistry, Hacettepe University, Beytepe, Ankara, 06800, Turkey

    ,
    Sedef İlk

    Faculty of Medicine, Department of Immunology, Niğde Ömer Halisdemir University, Niğde, 51240, Turkey

    School of Engineering Sciences in Chemistry, Biotechnology & Health, Department of Chemistry, Division of Glycoscience, KTH Royal Institute of Technology, Stockholm, SE-10691, Sweden

    ,
    Hossein Rahimi

    Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, 45139-56184, Iran

    ,
    Hossein Danafar

    Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, 45139-56184, Iran

    ,
    Murat Barsbay

    **Author for correspondence:

    E-mail Address: mbarsbay@hacettepe.edu.tr

    Department of Chemistry, Hacettepe University, Beytepe, Ankara, 06800, Turkey

    &
    Ali Sharafi

    *Author for correspondence:

    E-mail Address: sharafi.a@gmail.com

    Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, 45139-56184, Iran

    Published Online:https://doi.org/10.2217/nnm-2022-0203

    Aim: Quorum sensing (QS) is a density-dependent chemical process of cell-to-cell communication in which certain signals are activated, leading to the coordination of pathogenic behaviors and the regulation of virulence in bacteria. Inhibition of QS can prevent biofilm formation and reduce virulence behaviors of bacteria. Herein, bovine serum albumin (BSA)-coated silver nanoparticles (NPs) (Ag–Ag2S@BSA NPs) were synthesized and studied as an anti-QS agent. Materials & methods: Ag–Ag2S NPs prepared through a BSA-mediated biomineralization process under ambient aqueous conditions and their physicochemical properties were characterized. The anti-QS activity of the resulting BSA-coated NPs (Ag–Ag2S@BSA NPs) was investigated for the first time. Results & conclusion: The result confirmed the potential of Ag–Ag2S@BSA NPs as novel and useful therapeutic tools for antibacterial purposes.

    Plain language summary

    The overuse of antibiotics has caused the development of drug-resistant strains of bacteria. Nowadays, drug resistance is one of the main challenges in the treatment and prevention of microbial diseases. In general, many bacterial species communicate with each other through a population-dependent mechanism called quorum sensing to control their physiological activities. Therefore, inhibiting the quorum sensing mechanism is an attractive alternative to antibiotics and also reduces the risk of drug resistance, and this can be achieved by nanoparticles (NPs). Among these nanostructures, Ag NPs have received particular attention due to their antimicrobial, antibiofilm, anticancer and antioxidant properties. Herein, we report a method that applies a BSA-guided green and one-pot approach for achieving Ag–Ag2S NPs as potential antibacterial agents.

    Papers of special note have been highlighted as: • of interest; •• of considerable interest

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