Fig. 5From: A microfluidic platform for in situ investigation of biofilm formation and its treatment under controlled conditionsTime-lapse microscopy of adherent bacteria treated with 2 µg/ml of colistin and PI. Images were acquired every 30 s for 80 min. PI signal (in orange) was overlaid with bright-field images. The killing effect of colistin can be recorded down to the single cell levelBack to article page