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.

Sun et al.

Sun et al. Nanoscale Research Letters 2014 9:98   doi:10.1186/1556-276X-9-98

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