عنوان	Biologically Green Synthesis of High-quality Silver Nanoparticles Using Scrophularia striata Boiss Plant Extract and Verifying Their Antibacterial Activities
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Antibacterial activity,Biosynthesis,Plant extract,Scrophularia striata Boiss,Silver nanoparticles
چکیده	In the present work, we demonstrate a facile way to study the biosynthesis of silver nanoparticles (Ag-NPs) with strong bactericidal properties using an aqueous extract of Scrophularia striata Boiss. The bio-reduction of Ag+ ions resulted in FCC cubic structures of Ag-NPs with spherical shapes of about 16 nm. As a main aim of the present work, the antibacterial activity of the biosynthesized Ag-NPs against Gram-negative (Escherichia coli and Salmonella typhi ATCC) and Gram-positive (Staphylococcus aureus and Bacillus cereus) bacteria was evaluated by disk diffusion method and results were compared with those of ciprofloxacin antibiotic. Interestingly the antibacterial activity of as-prepared Ag-NPs against all pathogenic bacteria was considerably higher than those obtained for Ciprofloxacin, and also better than the recent reports on the bactericidal activity of bio-synthesized Ag-NPs. As a simple, cost-effective and biocompatible method, the present work proposes a facile way toward biosynthesis of large-scale Ag-NPs with an excellent antibacterial activity which can be suitable for future biological applications.
پژوهشگران	علی اصغر حاتم نیا (نفر اول)، حدیث طلوعی تبار (نفر دوم)، رضا صحرائی (نفر سوم)، احسان سهیلی (نفر چهارم)