Atividade antibacteriana de nanopartículas de polipirrol diante de Staphylococcus aureus isolados de amostras de leite de vacas e cabras com mastite / Antibacterial behavior of polypyrrole nanoparticles against Staphylococcus aureus isolated from cows and goats with mastitis
Arq. bras. med. vet. zootec. (Online)
;
72(3): 1047-1050, May-June, 2020. ilus
Article
Dans Portugais
| LILACS, VETINDEX
| ID: biblio-1129749
ABSTRACT
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 bioï¬lm 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 bioï¬lm production in 18 (69.23%) strains and weak bioï¬lm production in 8 (30.76%) strains. The MIC and MBC of S. aureus to PPy-NPs were found in the same concentration (125µÉ¡/mL) in all strains tested, regardless of biofilm production or not. This ï¬nding provides a new insight into the interaction between PPy-NPs and S. aureus, and will offer potential beneï¬ts for the control of mastitis.(AU)
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Pyrroles
/
Staphylococcus aureus
/
Capra
/
Mastite
Limites du sujet:
Animaux
langue:
Portugais
Texte intégral:
Arq. bras. med. vet. zootec. (Online)
Année:
2020
Type:
Article
Institution/Pays d'affiliation:
Universidade Federal Rural de Pernambuco/BR
/
Universidade Federal do Vale do São Francisco/BR
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