Dilution range (μg/ml)
Mean MIC
MIC 50
MIC 90
Average start time (min)
Ws
All isolates
A
B
C
A
B
C
A
B
C
Silver 10 nm
0.039-160
0.625-5
L25-10
0.625-5
2.5
5
1.25
5
10
5
5
Silver 20 nm
0.039-160
0.312-
0.31-
0.625-
1.25
1.25
1.25
2.5
tr)
2.5
1
Gold 10 nm
0.039-160
2.5
2.5
2.5
5
10
5
20
20
10
30
Gold 20 nm
0.039-160
2.5-20
5-20
5-10
5
5
5
10
if")
10
15
Copper 10 nm
0.039-160
2.5-10
1.25-5
2.5-10
10
10
10
20
20
20
15
Copper 20 nm
0.039-160
5-20
2.5-20
2.5-20
5
5
2.5
10
10
10
5
Table 4:
Determination of MIC and onset time of action of the AgNPs, AuNPs and CuNPs against
E. coli, S. typhyimurium
and
St. aureus
isolated from feces of calves suffering from diarrhea. A =
E. coli
, B =
Salmonella
, C =
St. aureus
