Published Paper Details:

Nanotechnology has attracted considerable interest due to its wide-ranging applications in healthcare and environmental management; however, many conventional nanoparticle synthesis techniques rely on toxic chemicals and energy-intensive processes that raise environmental concerns. In this study, an environmentally benign and sustainable method was developed for the green synthesis of silver nanoparticles (AgNPs) using soybean pod dry waste extract as a natural reducing and stabilizing agent. The synthesis was conducted under mild reaction conditions and was initially evidenced by a visible color change, followed by UV-Visible spectroscopic analysis, which showed a characteristic surface plasmon resonance band at 420 nm. Morphological examination using scanning electron microscopy revealed predominantly spherical nanoparticles with slight agglomeration. Energy dispersive X-ray analysis confirmed silver as the principal elemental component and indicated the presence of plant-derived biomolecules contributing to nanoparticle stabilization. Fourier transform infrared spectroscopy further demonstrated the involvement of phenolic, flavonoid, and proteinaceous functional groups in the reduction and capping processes. The synthesized AgNPs exhibited significant, concentration-dependent antibacterial activity. Overall, the findings underscore the potential of soybean pod dry waste as a low-cost and renewable resource for the eco-friendly synthesis of biologically active silver nanoparticles with promising antibacterial applications.