Saboe PO, Lubner CE, McCool NS, Vargas-Barbosa NM, Yan H, Chan S, Ferlez B, Bazan GC, Golbeck JH, Kumar M. Two-dimensional protein crystals for solar energy conversion.
Adv Mater 2014;
26:7064-9. [PMID:
25155990 DOI:
10.1002/adma.201402375]
[Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/18/2014] [Indexed: 05/03/2023]
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.
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