2 Teori
2.3 Sjangerskolens arbeidsmåte
Podemos destacar os seguintes pontos do presente trabalho:
I) Menores tamanhos de NPsAg, sintetizadas pela rota processada em meio básico contendo o glicerol como agente redutor e PVP como agente estabilizador, são obtidos em condições de máxima concentrações de PVP e de Ag+.
II) A combinação das NPsAg com o HDOX é dada por meio da interação do antibiótico com o PVP que estabiliza as NPsAg.
III) Nas primeiras três horas da adição de HDOX, as NPsAg não sofrem qualquer mudança em seu tamanho e distribuição de tamanho, entretanto as NPsAg sofrem efeito de desestabilização após 72 horas.
IV) NPsAg obtidas com a maior concentração de prata apresentam atividade antimicrobiana. Seus combinados com HDOX também apresentaram efeito, e este maior do que o apresentado pelo HDOX puro.
V) As NPsAg dos pontos de Ag+(-) combinadas com HDOX mostraram efeito de inibição de crescimento bacteriano para Escherichia coli maior do que o HDOX puro. As mesmas partículas sozinhas não apresentaram efeito antimicrobiano. Tais pontos nos levam a concluir que neste trabalho uma nova abordagem para combinar nanopartículas de prata, NPsAg com HDOX é apresentada. Isso porque mostramos que a poli (vinilpirrolidona), PVP desempenhou um papel primordial na concentração HDOX em torno da partícula que culminou em um aumento do efeito antimicrobiano contra a Escherichia coli. Algo bastante interessante, já que os agentes estabilizantes são normalmente indesejados na superfície de nanopartículas, visto que concorrem pelos sítios ativos da superfície da partícula.
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