TY - JOUR
T1 - Actividad inhibitoria del crecimiento bacteriano por cobre nanoestructurado obtenido de minerales de la región Marañón
T2 - comparación con cobre comercial
AU - Sánchez-Venegas, Jaime
AU - Pillaca, Mirtha
AU - Landauro, Carlos V.
AU - Ramirez, Pablo
AU - Lovera, Daniel
AU - Bernaldo, Jordán
AU - Eca, Anika
AU - De La Cruz, Fernando
N1 - Publisher Copyright:
© Los Autores.
PY - 2016/12
Y1 - 2016/12
N2 - 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.
AB - 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.
KW - Copper nanoparticles
KW - Gram negative bacteria
KW - Gram positive bacteria
KW - Growth inhibitory activity
KW - Mechanical milling
UR - http://www.scopus.com/inward/record.url?scp=85007354540&partnerID=8YFLogxK
U2 - 10.15381/rpb.v23i3.12866
DO - 10.15381/rpb.v23i3.12866
M3 - Artículo
AN - SCOPUS:85007354540
SN - 1561-0837
VL - 23
SP - 305
EP - 310
JO - Revista Peruana de Biologia
JF - Revista Peruana de Biologia
IS - 3
ER -