Differential potentialities of pod broth of indigofera linifolia (l.f) retz. in fabricating noble metal nanoparticles

This report presents differential potentialities of pod broth of Indigofera linifolia in fabricating silver and gold nanoparticles. The biomolecules present in the pod broth induced the reduction of silver and gold ions from silver nitrate and gold chloride respectively, which resulted in the formation of very stable respective nanoparticles. The UV- Visible (UV-Vis) spectroscopic analysis reveals that the Surface Plasmon Resonance (SPR) vibrations have λ max at 455 and 535nm. These λ max values correspond to the formation of silver and gold nanoparticles respectively. Fourier Transform Infrared (FT-IR) spectroscopic analysis explains that biomolecules in the pod broth are responsible as capping agents for the synthesis and stabilization of silver and gold nanoparticles. X-ray diffraction (XRD) analysis shows the particle nature and size. Energy Dispersive X-Ray (EDX) analysis and Scanning Electron Microscopy (SEM) confirm the significant presence of elemental silver and gold nanoparticles in respective reaction media.