Inhibition of growth of <i>E. coli</i> by ampicillin.

<p>(A) Microwell plate based signaling profiles of RFD-EC1 in the presence of 100 seeding <i>E. coli</i> cells that were incubated at 37°C for 6 hours with or without 10 µg/mL ampicillin in LB. (B) Fluorescent image of 10% dPAGE of the samples in panel A. (C) Growth inhibition test using RFD-EC1 with 100 seeding <i>E. coli</i> cells that were incubated at 37°C in LB for 6 hours in the presence of 0, 0.25, 0.5, 1, 2, 4, 8, 16, 32 µg/mL ampicillin. (D) dPAGE analysis of the reaction mixtures in (C). (E) Growth inhibition test using OD method with 2 × 10⁵<i>E. coli</i> cells that were incubated at 37°C in LB for 18 hours in the presence of 0.25, 0.5, 1, 2, 4, 8, 16, 32 µg/mL of ampicillin.