In this paper, we report on the bacterial growth inhibitory activity of nanoparticles of cemented and commercial copper. Strains of Staphylococcus aureus ATCC 6538 (Gram positive) and Escherichia coli ATCC 35218 (Gram negative) were used to determine the inhibitory effect by the minimal inhibitory concentration of the nanoparticles diluted in nutrient culture broth and distributed in ELISA plates. The copper cements (obtained from hydrometallurgical processes) and the commercial one were nanostructured employing a mechanical milling equipment. The results indicate that commercial copper nanoparticles (after 2.5 hours of milling) show growth inhibitory action of S. aureus strain. However, in the case of E. coli strains no inhibitory action has been observed. It was also determined that the minimal inhibitory concentration of the commercial copper is 20 μg/mL against S. aureus. On the other hand, copper cements (in solid and nanostructured form) do not show inhibitory effects.

Título traducido de la contribuciónBacterial growth inhibitory activity for nanostructured copper minerals obtained from the Marañon region: Comparison with commercial copper
Idioma originalEspañol
Páginas (desde-hasta)305-310
Número de páginas6
PublicaciónRevista Peruana de Biologia
EstadoPublicada - dic. 2016

Nota bibliográfica

Publisher Copyright:
© Los Autores.

Copyright 2017 Elsevier B.V., All rights reserved.

Palabras clave

  • Copper nanoparticles
  • Gram negative bacteria
  • Gram positive bacteria
  • Growth inhibitory activity
  • Mechanical milling


Profundice en los temas de investigación de 'Actividad inhibitoria del crecimiento bacteriano por cobre nanoestructurado obtenido de minerales de la región Marañón: comparación con cobre comercial'. En conjunto forman una huella única.

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