SÍNTESE, CARACTERIZAÇÃO E ANÁLISE ANTIMICROBIANA DE NANOPARTÍCULAS DE PRATA OBTIDAS ATRAVÉS DA ROTA VERDE COM EXTRATOS VEGETAIS E SÍNTESE INORGÂNICA
DOI:
https://doi.org/10.17564/2316-3798.2022v9n1p319-332
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Abstract
The increase in bacterial resistance has led to the search for the discovery of new antibiotics and the potentiation of existing classes of antibiotics. Green synthesis gains space in this area by using organic components that reduce the cost of the process and produce a less harmful approach to the environment. The research aimed to compare the different syntheses of silver nanoparticles and to evaluate the antimicrobial activity. Seven plant samples of species found in the Amazon were used: Cassimirela (Humirianthera longa), Copaíba (Copaifera officinalis L), Sacaca (Croton cajucara BENTH), Maclura (Maclura tinctoria), Quina-quina (Cinchona officinalis) and Pimenta Longa (Piper longum). ). The extraction of essential oil from the plants was carried out using the steam drag technique. The synthesis of nanoparticles occurred through the green route using plant extracts as reducing agent (Nps Ag organic) and borohydride as reducing agent in chemical synthesis (Nps Ag Inorganic). To characterize the synthesized nanoparticles, UV-Vis spectroscopic analysis was performed followed by dynamic light scattering (DLS) analysis. The different extracts analyzed in the assay did not demonstrate antimicrobial action in the different strains used, but the nanoparticles synthesized from the use of the extract as a reducing agent resulted in three syntheses of copaíba, cassimirela and sacaca.
