Research Article

Considerable Variation of Antibacterial Activity of Cu Nanoparticles Suspensions Depending on the Storage Time, Dispersive Medium, and Particle Sizes

Table 2

рН value of Cu 50 nanoparticle suspensions.

Concentration (mg/L)Cu 50 + H2O (0.5 h)Cu 50 + H2O (24 h)Cu 50 + PS (0.5 h)Cu 50 + PS (24 h)

0.00017.67.07.27.1
0.0017.67.17.27.1
0.017.37.17.17.2
0.17.37.27.17.2
17.37.27.27.2
107.47.27.37.2