Sustainable synthesize of silver nanoparticles using Robinia Neomexicana: Antibacterial, antioxidant and photocatalytic properties

[Display omitted] •Silver nanoparticles were synthesized by Robinia Neomexicana flower extract by Greener, effective, and economical method was carried out and the characterization was performed to study the structure and properties of synthesized AgNPs.•Antibacterial and antifungal studies were carried out again with gram-positive and two gram-negative bacteria.•Methylene blue dye degradation was done within 100 min by using synthesized AgNPs.•The antioxidant analysis and hemolytic activity of synthesized AgNPs 4.3% have only and are suitable for nanomedicine. Bio-inspired nanoparticles have a wide range of applications, recently received a lot of attention in various domains. By employing Robinia Neomexicana flower extract at room temperature without any additional stabilizing or reducing agents, the silver nanoparticles (AgNPs) were formed by using a more environmentally friendly and one-pot method. The phytochemicals found in the flower extract of Robinia Neomexicana caused the bio-reduction process. A variety of analytical techniques, including UV–Vis, FT-IR, TEM, EDAX, Raman, SEM, and XRD, were used to substantiate the formation of silver nanoparticles. The synthesized AgNPs were 15 nm in diameter and spherical. The objective of the ongoing research is to develop a natural antioxidant source and nontoxic carrier for use in the medical field. These experiments’ findings point to a natural source of antibacterial and antifungal action as well as nanomedicine application. The results of this study show that antibacterial and antifungal activity was examined as a natural source of antioxidants and nanomedical uses. The cytotoxicity of produced AgNPs was demonstrated by the hemolytic assay with control the synthesized AgNPs have a hemolytic activity of 4.3 % only and the water remediation experiment was carried out and degraded the dye within 100 min.