Fig. 2
From: Development of a longevous two-species biophotovoltaics with constrained electron flow
Schematic illustration of three setups used for constructing microbial consortium. a Temporal separation setup. The charging process (photosynthetic production of d-lactate) and discharging process are implemented sequentially under light and dark conditions, respectively. b Spatial separation setup. Cyanobacteria and S. oneidensis are cultured in two individual chambers separated by a micro-porous membrane, which ensures the charging and discharging processes proceed at the same time and allows S. oneidensis to be shielded from light. c Spatial-temporal separation setup with medium replenishment. The cyanobacterial culture is replenished with fresh MBG11 medium. This enables a continuous production of d-lactate in the cyanobacterial chamber (left), which is used for electricity production in the anodic chamber (right). Here, all cathodic chambers are omitted
