Abstract
An eco-friendly procedure for the synthesis of silver nanoparticles using the flower extract of Tabernaemontana coronaria (jacq.) wild. as a reducing and stabilizing agent. The synthesised AgNps by using fresh and dry flower extract (aqueous extract) were characterized using UV-Visible spectroscopy, FTIR analysis, XRD and SEM and EDAX. The synthesized metal is face centered cubic (fcc) Ag nanocrystals and the AgNps obtained from both fresh and dry flower extract were spherical in shape with size of 16-56 nm and 14-39 nm respectively. The synthesised AgNps had significant antibacterial activity and also the particles showed the moderate antibacterial activity when it was mixed with honey towards Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, and Salmonella typhi; compared with standard antibiotics. The green synthesized AgNps showed moderate antibacterial activity in combination with honey. This antibacterial activity of green synthesized silver nanoparticles with honey is the novel approach and can be easily improved to handle the development of antibiotic resistance in bacterias.
