Investigation of antibacterial activity of silver nanoparticles produced with marigold extract

Introduction: Silver nanoparticles are used widely in manufacturing of different production for their unique physical and chemical properties and also they have been noticed in medical diagnosis and treatment because of their antibacterial properties. Materials and methods: Physical and chemical methods that used to produce nanoparticles, are expensive and may remain the toxic substances in the nanoparticles. To solve this problem, biological production of nanoparticles is considered as an efficient alternative method. In this study, antibacterial properties of silver nanoparticles produced by marigold extraction and biological methods, were compared with chloramphenicol. Results: The resistance of silver nanoparticles against Pseudomonas aeruginosa bacteria was significantly higher than chloramphenicol but against Staphylococcus aureus showed no significant difference with chloramphenicol. Conclusion: Chloramphenicol showed more resistance against Bacillus subtilis bacteria.

کلیدواژه ها:

Silver nanoparticles ، Marigold ، Antibacterial ، Plant extract