Obtenção de nanopartículas de prata por síntese verde a partir de brácteas de bougainvillea glabra choisy

Abstract

Nanoparticulate materials have gained prominence due to their optimized properties compared to bulk materials, which are of interest in medicine, pharmacology, and engineering. Due to the use of toxic materials in nanoparticle synthesis, eco-friendly production routes have become necessary to mitigate environmental impacts. In this work, the hydroalcoholic extract of Bougainvillea glabra bracts was used to synthesize silver nanoparticles. The influence of light wavelength on nanoparticle production and properties was evaluated using a rainbow assay, where visible spectrum colors were tested with Light Emitting Diodes (LED). The results showed a gradual increase in plasmonic resonance intensity, indicating a higher yield in obtaining nanoparticles. Greater efficiency was observed in removing methylene blue dye and antimicrobial activity, with higher toxicity in nanoparticles synthesized with violet and orange LED light.