Fig. 5From: Analysis of bioavailable toluene by using recombinant luminescent bacterial biosensors with different promotersRelationship between toluene concentration [(a) 0.01–500 and (b) 0.05–10 μM] and luminescence of recombinant E. coli with different promoters (initial cell concentration: 5 × 107 cfu/mL, culture media: TMM, operational condition: 37 °C and 200 rpm, incubation time: 2 h for T3/T7-lux-E. coli and 1 h for SP6-lux-E. coli)Back to article page