Green synthesis of silver nanoparticles using sunflower extract for biological application

Abstract

The employment of a green-synthesis strategy for the fabrication of silver nanoparticles (Ag NPs) represents a significant advancement in scientific inquiry. This approach harnesses the combined effects of metallic and botanical constituents, utilizing extracts derived from the Sunflower plant. These extracts serve as inherently natural and replenishable agents, exerting roles such as reduction, chelation, stabilization, binding, and precipitation. The crystal structure of Ag nanoparticles produced were determined using XRD as cubic, that had an average crystallite size of 31.18 nm. There the energy dispersive spectrometry (EDX) evidenced of silver element. This was carried out by using Field Emission Scanning Electron Microscope (FESEM) technique which revealed that the particles were spherical-shaped Ag and their average size was 31.23nm. Furthermore, the optical gap was additionally measured to be equal to 2.7 eV by means of Diffuse Reflectance Spectroscopy (DRS). This entire fabrication process by combining different techniques of characterization ultimately achieved in nanostructured silver fabrication. On the other hand, biological efficacy evaluations might determine the antimicrobial potential of the hierarchically porous silver (Ag) architectures against Staphylococcus aureus, pseudomonas, aeruginosa, Streptococcus mutans and E. coli. Also against the different species of fungi: Candida albicans, Penicillium spp., and Aspergillus spp species played a crucial role it the past 5 years. The data obtained shows that these structures are among the most viable options to be utilized in regards to antimicrobial contexts. Generally, the most common ag nanopartciles (Ag NPs) are a natural bacteria substitute for Staphylococcus aureus, pseudomonas aeruginosa, Streptococcus mutans and E coli. Also against the different species of fungi: Yeasts, such as Candida albicans, Penicillium spp, and Aspergillus spp are the prominent organisms that threaten the immune system of immunocompromised hosts were measured. It raises the question of the effectiveness of this study in the area of not only anti bacteria but also other applications.