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Arq. bras. med. vet. zootec. (Online) ; 72(3): 1047-1050, May-June, 2020. ilus
Artículo en Portugués | LILACS, VETINDEX | ID: biblio-1129749

RESUMEN

The aim of the present study was to evaluate the antibacterial behavior of polypyrrole nanoparticles (PPy-NPs) in water against biofilm producer or not S. aureus isolated from cows and goats with mastitis. One hundred and thirty-eight isolates of S. aureus were initially evaluated for biofilm formation by spectrophotometry in microplates. In addition, the minimum inhibition concentration (MIC) and minimum bactericidal concentration (MBC) of PPy-NPs in water for planktonic S. aureus were determined. From the bovine samples analyzed, 5 (4.46%) S. aureus isolates showed a strong biofilm production, 17 (15.18%) moderate production, 36 (32.14%) with weak production and 54 (48.21%) did not produce biofilms. Strains from goats (26) showed no biofilm production in 18 (69.23%) strains and weak biofilm production in 8 (30.76%) strains. The MIC and MBC of S. aureus to PPy-NPs were found in the same concentration (125搭/mL) in all strains tested, regardless of biofilm production or not. This finding provides a new insight into the interaction between PPy-NPs and S. aureus, and will offer potential benefits for the control of mastitis.(AU)


Asunto(s)
Animales , Femenino , Bovinos , Pirroles/administración & dosificación , Staphylococcus aureus/efectos de los fármacos , Cabras/microbiología , Mastitis/veterinaria , Biopelículas , Antibacterianos/uso terapéutico
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