Fig. 2.

Temporal absolute power evolution of the SSM-MFCs under potentiostatic conditions (450 mV). Although data points were recorded every 4 mins, for clarity purposes, only two values per day are plotted. The curves are the average of each duplicate condition and the error bars stand for the values range. Green, red and blue curves stand for the 1 cm, 2 cm and 3 cm conditions, respectively conditions A, B and C. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)