Table 1

Effect of concentrations of silver nanoparticles
Concentration of Ag NPs in E. coli culture (μg/mL) Specific growth rateμ (h-1) Doubling timetd (h)
0 0.92 ± 0.03 0.75 ± 0.02
0.075 0.25 ± 0.01 2.8 ± 0.01
0.090 0.20 ± 0.01 3.4 ± 0.01
0.100 0.197 ± 0.01 3.52 ± 0.01
0.120 0.18 ± 0.01 4.31 ± 0.01
0.135 0.15 ± 0.01 4.6 ± 0.01
0.150 0.11 ± 0.01 6.3 ± 0.02
PHMB alone (3 μg/mL) 0.788 ± 0.03 0.879 ± 0.02

Ashraf et al.

Ashraf et al. Nanoscale Research Letters 2012 7:267   doi:10.1186/1556-276X-7-267

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