![]() Antibacterial action of the AgNPs was in the following order: ginger (minimum inhibitory concentration garlic> cayenne pepper (MIC 125 μg/mL). FTIR showed that amine, protein, phenolic, aromatic, and alkynes groups contributed to AgNP synthesis and XRD confirmed their crystalline and face-centered cubic nature. SEM and TEM revealed well-dispersed spherical particles with little agglomeration, average sizes of 3-6 nm, 3-22 nm, and 3-18 nm for garlic, ginger, and cayenne pepper, respectively. The AgNPs were formed within an hour of the reaction and showed maximum UV-Vis absorption in the 375-480 nm range. The AgNPs were characterized using ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray, X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. This study aimed to analyze the synthesis, characterization, and biological activities of silver nanoparticles (AgNPs) from three spices.ĪgNPs were prepared using 0.1 M silver nitrate and aqueous extracts of Allium sativum L. Herbal drug delivery is limited by poor solubility and bioavailability which can be overcome with suitable nanomaterials that will enhance their pharmacokinetics and performance.
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