Avaliação de nanopartículas de ZnO, CuO e Cu2O como agente antimicrobiano

Abstract

The technological advanced through studies and researches allowed us to make increasingly influential discoveries in the smallest physical dimensions. It is the case of nanotechnology, which has a huge list of applications, between then, the development of nanoparticles coated with antibiotics. Through that and based on studies, it is believed that zinc oxide (ZnO) nanoparticles, copper oxide ll (CuO) nanoparticles and copper oxide l (Cu2O) nanoparticles could serve as alternative antibiotics, once that, the number of reports involving bacteria which development higher resistance to the antibiotics commonly used nowadays is increasing. For this reason, it is intended synthesize, using the adapted Pechini method, the ZnO, CuO and Cu2O nanoparticles, and avaliate their antimicrobial behavior. The investigation regarding these nanoparticles in the microbial growth of bacteria Staphylococcus epidermidis, Pseudomonas aeruginosa, Salmonella spp. e Escherichia coli, was made through the agar diffusion method. Therefore, it was possible to find results that proves the efficiency of the metallic nano-oxides as antimicrobial agents against pathogenic bacteria, and, in the case of S. epidermidis in particular, the non-influence of the nanoparticle in the bacteria.