From 2007.igem.org

Figure 1: the production of AHL could be accelerated both by the addition of IPTG and increasement if living cells.
Figure 2: the concentration of AHL decreases nearly proportionally to the flux rate of liquid culture since the rate of AHL production maintains stable.

Figure 3: concentration of AHL increases expotentially during the first 40 minutes after the input of liquid culture, but keep constant from then on.

Figure 4: Rough description of relationship between the input of AHL signal and the output of AHL signal when the flux passes through the amplified cells. Low concentration input failed to initialize the amplication process.

Figure 5: With the rising of flux and input signal, the output signal tend to rocketrise at a particular value,which indicates the value of threshold.