“…Recently, Os-polymers were studied as electron conduits between photosynthetic organisms ( Rhodobacter capsulatus [ 22 ] and Leptolyngbya sp. The strain used in this work is strongly benthic and has demonstrated greater electrogenic activity [ 30 ] than a panel of prokaryotic cyanobacteria under identical conditions. There are other examples, where different polymers have been used to facilitate electrochemical communication between photosynthetic systems and electrodes, e.g., Zou et al, reported enhanced electron extraction from photosynthetic biofi lms via an electrically conductive polymer, polypyrrole, [ 24 ] Rosenbaum et al, reported photocurrent generation and hydrogen production by immobilizing a green algae, Chlamydomonas reinhardtii , on a polymer, e.g., poly(2,3,5,6-tetrafl uoroaniline) or poly(2fl uoroaniline) coated platinum mesh electrodes, [ 25 ] and Logan and co-workers have studied the bioelectricity production by employing two different microalgae, i.e., Chlorella vulgaris and Ulva lactuca .…”