Figure 5
Correlation between electron transfer and chromaticity.
a, Electricity generation (normalized to the cathode surface area) as a function of incubation time for the three strains (Nos. 12, 17 and 22) and their corresponding wells after 5-min incubation. b, The grayscale image “Density (mean)” of each well, while No. 0 corresponding to the strains in Rows A-D Column 1, No. 1 to the strains in Rows A-D Column 2, No. 2 to the strains in Rows A-D Column 3, No.23 to the strains in Rows E-H Column 12. c, Correlation between the current density and the corresponding well “Density (mean)” (Spearman's ρ = 0.833, P < 0.01).
