Table 3: The antibacterial and antifungal activity of selected Ag and Cu based colloidal solutions immobilized at cotton-synthetic fabric. The static activity was determined in accordance with the following equation: (see details in Section 2). The lethal activity was determined in accordance with the following equation: (see details in Section 2).

Bacterial strainCandida albicans
ATCC 10231
Escherichia coli
ATCC 8739
Staphylococcus aureus
ATCC 6538

Inoculum concentration (cell/mL)0.9 ± 0.15 × 1051.3 ± 0.1 × 1051.8 ± 0.15 × 105
Value of growth ()1.511.511.54
The method of calculating the number of viable microorganismsPlate method
Type of fabricCotton-synthetic fabric

The static activity ()/lethal ()
NanoAg 94 0.21/−1.27AbsenceAbsence
NanoCu 2220.54/−0.940.31/−1.20−0.01/−1.55
Alloy Ag/Cu −0.02/−1.50AbsenceAbsence
Ag core/Cu shell 0.09/−1.39AbsenceAbsence
Cu core/Ag shell 0.46/−1.020.03/−1.470.03/−1.50
NPs Cu/ions Ag+0.18/−1.30AbsenceAbsence
NPs Ag/ions Cu2+−0.05/−1.43AbsenceAbsence

Absencemeans the complete elimination of microorganisms. Sample is active microbiologically.