title: Two-dimensional protein crystals for solar energy conversion.
abstract: Two-dimensional photosynthetic protein crystals provide a high density of aligned reaction centers. We reconstitute the robust light harvesting protein Photosystem I into a 2D crystal with lipids and integrate the crystals into a photo-electrochemical device. A 4-fold photocurrent enhancement is measured by incorporating conjugated oligoelectrolytes to form a supporting conductive bilayer in the device which produces a high photocurrent of ∼600 μA per mg PSI deposited.
authors.affiliation: Department of Chemical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Patrick O
authors.initials: PO
authors.lastname: Saboe
authors.forename: Carolyn E
authors.initials: CE
authors.lastname: Lubner
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: McCool
authors.forename: Nella M
authors.initials: NM
authors.lastname: Vargas-Barbosa
authors.forename: Hengjing
authors.initials: H
authors.lastname: Yan
authors.forename: Stanley
authors.initials: S
authors.lastname: Chan
authors.forename: Bryan
authors.initials: B
authors.lastname: Ferlez
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Bazan
authors.forename: John H
authors.initials: JH
authors.lastname: Golbeck
authors.forename: Manish
authors.initials: M
authors.lastname: Kumar
mesh_terms: D002462:Cell Membrane / Q000201:enzymology; D011211:Electric Power Supplies; D004563:Electrochemistry; D008958:Models, Molecular; D045331:Photosystem I Protein Complex / Q000737:chemistry*; D011487:Protein Conformation; D012993:Solar Energy; D046940:Synechococcus / Q000166:cytology / Q000201:enzymology
chemical_list: D045331:Photosystem I Protein Complex
keywords: bioelectrochemistry; biomimetic membranes; photovoltaics; self-assembly; two dimensional crystals