title: Photo-electrochemical communication between cyanobacteria (Leptolyngbia sp.) and osmium redox polymer modified electrodes.
abstract: Photosynthetic microbial fuel cells (PMFCs) are an emerging technology for renewable solar energy conversion. Major efforts have been made to explore the electrogenic activity of cyanobacteria, mostly using practically unsustainable reagents. Here we report on photocurrent generation (≈8.64 μA cm(-2)) from cyanobacteria immobilized on electrodes modified with an efficient electron mediator, an Os(2+/3+) redox polymer. Upon addition of ferricyanide to the electrolyte, cyanobacteria generate the maximum current density of ≈48.2 μA cm(-2).
authors.affiliation: Department of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O. Box 124, SE-22100 Lund, Sweden. Lo.Gorton@biochemistry.lu.se Kamrul.Hasan@biochemistry.lu.se.
authors.forename: Kamrul
authors.initials: K
authors.lastname: Hasan
authors.forename: Huseyin
authors.initials: H
authors.lastname: Bekir Yildiz
authors.forename: Eva
authors.initials: E
authors.lastname: Sperling
authors.forename: Peter Ó
authors.initials: PÓ
authors.lastname: Conghaile
authors.forename: Michael A
authors.initials: MA
authors.lastname: Packer
authors.forename: Dónal
authors.initials: D
authors.lastname: Leech
authors.forename: Cecilia
authors.initials: C
authors.lastname: Hägerhäll
authors.forename: Lo
authors.initials: L
authors.lastname: Gorton
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D000458:Cyanobacteria / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D006108:Graphite / Q000737:chemistry; D009992:Osmium / Q000737:chemistry*; D010084:Oxidation-Reduction; D055668:Photochemical Processes; D010788:Photosynthesis; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers; D009992:Osmium; D006108:Graphite