Extractos vegetales para la síntesis verde de nanopartículas de plata con posibles aplicaciones antibacterianas

Abstract

Abstract: In this study, the synthesis of silver nanoparticles was developed using plant extracts from Salacia cordata, a little-studied species with a history of research on its bioactive compounds. AgNPs have been applied in different areas of industry; this research emphasized their antioxidant and antibacterial properties. The synthesis of the AgNPs was carried out by heating, adjusting the temperature for a specific period of time. The color change in the solution indicated the formation of nanoparticles, and their presence was confirmed by UV-Visible spectroscopy. This technique allowed determining concentration, size, shape, and distribution, considering that the compounds present in the species could influence the characteristics of the AgNPs. To evaluate antioxidant and antibacterial activity, different samples were used: AgNPs without extract, extract, and AgNPs with extract. The antioxidant activity was analyzed using the ABTS and DPPH methods, yielding significant results in the extract. In antibacterial tests, the AgNPs without extract inhibited the growth of some bacteria. This study highlights the potential of S. cordata for the synthesis of functional nanoparticles, highlighting its impact on innovative solutions for industry.