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. 2014 Feb 27;9(1):98. doi: 10.1186/1556-276X-9-98

Table 1.

Colony count of E. coli after antibacterial activities by titanium-doped ZnO powders

Zinc salt Powder concentration (g/L)
0 0.25 0.5 0.75 1.0 1.5 2.0 2.5
Zn (Ac)2
 1.25 × 108
 2.1 × 107
 1.95 × 107
 1.75 × 107
 1.2 × 107
 3.85 × 106
 2.9 × 103
 1.65 × 103
ZnSO4
 1.1 × 107
 9.75 × 106
 5.3 × 106
 2.95 × 105
 5.6 × 104
 1.6 × 104
 7.65 × 103
Zn (NO3)2
 2.15 × 107
 1.9 × 107
 1.65 × 107
 1.6 × 107
 3.35 × 105
 2.8 × 103
 0
ZnCl2   3.05 × 104 6.55 × 103 3.9 × 103 2.5 × 103 2.3 × 103 2.0 × 103 0

The initial bacterial colony count is 8.75 × 105 CFU/mL.