Fig. 4
Quantitative analysis of the growth of individual B. coagulans cells. a Fixed observation of individual B. coagulans cells. The microdroplets shown in each image are the same, and the smaller microdroplet marked by a blue star was used as a reference. Scale bar: 50 μm. b The growth of B. coagulans was quantified by counting the number of effective pixels. c Scatterplot of the cell density in the flask and the effective pixels in the microdroplets. The results show a good consistency, with an R2 value of 0.98