Fig. 7
From: Development of a longevous two-species biophotovoltaics with constrained electron flow
Electron flow comparison of two different types of BPV. One type is based on the single species of cyanobacteria, and another is based on the CLS microbial consortium. The red solid arrows show the routes of electron transfer and the thickness of the arrows indicates the relative flux of electrons. In the single species of cyanobacteria, photoexcited electrons are transferred directly to the electrode with a low EET efficiency. In the CLS microbial consortium, photoexcited electrons are diverted to d-lactate by the engineered cyanobacterium, and S. oneidensis releases these electrons to the electrode with a high EET efficiency of about 70%. Solar energy allocation in the strain Syn2973-omcS-ldh was calculated based on the heat of combustion and shown at the bottom. Source data are provided as a Source Data file
