Abstract
Plant based synthesis of nanoparticles has generated worldwide interest because of cost-effectiveness, eco-friendly nature and abundance of applications. In the present investigation , antimicrobial potential of silver nanoparticles (AgNPs) of aqueous extract of Tabebuia rosea (Bertol.) DC (T. rosea) fruit extract has been investigated. Agar disc diffusion method was used for determining the antimicrobial activity of selected aqueous fruit extract AgNPs. Phytochemical analysis of aqueous fruit extract of T. rosea fruit revealed the presence of alkaloids, flavonoids, tannins, phenols, carbohydrates, glycosides, Vitamin-C, proteins and terpenoids. AgNPs synthesis using T. rosea aqueous fruit extract and characterized by UV-Visible spectroscopy showed a peak at 420 nm and average size of 82.9 nm, FT-IR analysis, dynamic light scattering, scanning electron microscope, EDX and X-ray diffraction analysis. Evaluation of antibacterial activity of green synthesized AgNPs recorded the more potent activity against selected human bacterial pathogens. The results obtained indicated that the fruit extract of T. rosea as well as AgNPs have strong and effective antibacterial potential that provide marvelous source for the development of new drug molecules of herbal origin which may be used for the welfare of humanity.
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