Figure 3. After being co-cultured with Proteus mirabilis (ATCC12453) for 2, 4, and 7days, the colony forming units/cm2 of membrane (log) was 5.20 ± 0.25, 5.78 ± 0.12 and 6.48 ± 0.59 on blank membranes; 0, 0 and 4.12 ± 0.22 on Bmap-28 membranes; 0, 0, 3.23 ± 0.54 on quaternary ammonium salt membranes; 0, 0 and 3.23 ± 0.54 on ciprofloxacin membranes, respectively.

Every value mentioned above was the mean value calculated from 3 replicated experiments. The original point “0” of y axis means no or very little bacteria load unable to be detected by colony counting.