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Recently, the eco-friendly production of silver nanoparticles (AgNPs) has become a focal point for researchers. In India, the quest for cost-effective, non-hazardous compounds suitable for reducing and stabilizing AgNPs has been limited. This study explores the synthesis of AgNPs using Elettaria cardamomom seed extract. We evaluated the efficiency of silver ion (Ag+) reduction and AgNP formation from an aqueous AgNO3 solution combined with the cardamom seed extract. Characterization of the AgNPs was carried out through UV-vis spectroscopy, XRD, SEM, EDAX, and FTIR. This research presents a practical and efficient strategy for AgNP production. A formulation using readily available 1 mm aqueous AgNO3, known for its accessibility and therapeutic properties, was created with cardamom seed extract serving as both a capping and reducing agent. Within 30 minutes, the silver ions were reduced to AgNPs, resulting in a change from golden to dark brown-reddish tint. Various analytical techniques, including UV-vis spectroscopy and Fourier-transform infrared spectroscopy, were employed for characterization. This study introduces an affordable, robust, and renewable method using E. cardamomum seeds for AgNP synthesis, which is entirely eco-friendly and devoid of toxic chemicals. AgNPs hold promise for applications in cancer treatment and diagnosis, setting them apart from other noble metals. [ABSTRACT FROM AUTHOR]

There is an increasing commercial demand for nanoparticles due to their wide applicability in various areas such as electronics, catalysis, chemistry, energy, and medicine. Metallic nanoparticles are traditionally synthesized by wet chemical techniques, where the chemicals used are quite often toxic and flammable. In this work, we describe a cost effective and environment friendly technique for green synthesis of silver nanoparticles from 5mM AgNO3 solution through the extract of Argimone maxicana leaf as reducing agent as well as capping agent. Nanoparticles were characterized using UV-Vis absorption spectroscopy, FTIR, XRD and SEM. X-ray diffraction and SEM analysis showed the average particle size of 30 nm as well as revealed their structure. Further these biologically synthesized nanoparticles were found to be highly toxic against different bacterial spp. The most important outcome of this work will be the development of value-added products from Argimone maxicana (a potential weed of India) for biomedical and nanotechnology based industries. This is for the first time that Argimone maxicana weed leaf extract was used for the synthesis of nanoparticles. [ABSTRACT FROM AUTHOR]