SÍNTESE, CARACTERIZAÇÃO, ATIVIDADE ANTIMICROBIANA DE NANOPARTÍCULAS DE FERRITA DE COBRE E SUA INCORPORAÇÃO EM CIMENTO DE IONÔMERO DE VIDRO

Abstract

SYNTHESIS, CHARACTERIZATION, ANTIMICROBIAL ACTIVITY OF COPPER FERRITE NANOPARTICLES AND THEIR INCORPORATION IN GLASS IONOMER CEMENT. Pure cubic copper ferrite (c-CuFe2O4), cerium-doped cubic copper ferrite (c-CuCeFe2O4) and pure tetragonal copper ferrite (t-CuFe2O4) nanoparticles were synthesized from the proteic sol-gel method, and characterized by X-ray diffraction, Rietveld method, FT-IR spectroscopy, and field emission scanning electron microscope. The antibacterial activity of the particles was tested in vitro against pathogenic Gram-positive, Gram-negative bacteria. Thus, it has been observed that the nanoparticles are capable of inhibiting the growth of such microorganisms. The nanoparticles were incorporated into glass ionomer cement, followed by Vickers microhardness evaluation. It is concluded that the cubic copper ferrite showed the best antimicrobial result, being the most suitable for market studies (industrial and biomedical).