Bibliographic citations
Cabrera, R., (2022). Efecto antibacteriano de diferentes concentraciones de nanopartículas Core@Shell Ag@ZnO sobre Escherichia coli y Staphylococcus aureus [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/19467
Cabrera, R., Efecto antibacteriano de diferentes concentraciones de nanopartículas Core@Shell Ag@ZnO sobre Escherichia coli y Staphylococcus aureus []. PE: Universidad Nacional de Trujillo; 2022. https://hdl.handle.net/20.500.14414/19467
@misc{renati/1043602,
title = "Efecto antibacteriano de diferentes concentraciones de nanopartículas Core@Shell Ag@ZnO sobre Escherichia coli y Staphylococcus aureus",
author = "Cabrera pinedo, Renzo Noe",
publisher = "Universidad Nacional de Trujillo",
year = "2022"
}
The objective of this research was to determine the antibacterial effect of the different concentrations of Core@Shell Ag@ZnO nanoparticles on Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923, using the Kirby Bauer method and the microplate microdilution method. As a first method, to determine the antibacterial susceptibility, 4 different concentrations of nanoparticles were used. With the second method, the minimum inhibitory concentration (MIC) of the nanoparticles on E. coli and S. aureus was determined. For the minimum bactericidal concentration (MBC), it was seeded in Petri dishes with nutrient agar from the wells of the CMI microplate. The results of the Core@Shell Ag@ZnO nanoparticles showed greater antibacterial susceptibility by increasing the concentration of nanoparticles, which was measured by the size of the diameter (mm) of the growth inhibition halo in both bacteria, better effects in E coli, with a greater average inhibition halo of 12,5 mm at a concentration of 26,6 μg/mL, unlike S. aureus, which presented an average inhibition halo of 10 mm at a concentration of 26,6 μg/mL. On the other hand, the results obtained in E. coli for the MIC was 5,98 μg/mL, while in S. aureus the value of 7,98 μg/mL was reported. Regarding the results of the CMB, E. coli and S. aureus presented values of 5,98 μg/mL and 7,98 μg/mL, respectively. It was concluded that the different concentrations of Core@Shell Ag@ZnO nanoparticles showed an antibacterial effect on E. coli ATCC 25922 and S. aureus ATCC 25923.
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