From 2007.igem.org

Figure 1: Following two figures are selected from five parallel experiments aiming at verifying the function of immobilized amplified cells. The function curves of generator cells and block cells are also displayed in the same figure to emphasize the effects of amplified cells. Actually, the curves of amplified cell( marked as 8P) is identical with that of generator cells, a phenomenan which could be attribute to self-activation of amplified cells because of its leakage expression of AHL. Since the threshold of Quorum Sensing is far below than our expectation, further adjustment need to make to eliminate the leakage expression of AHL to a reasonal level to avoid such a condition.