Issue 9, 2011

Wiring photosynthetic enzymes to electrodes

Abstract

The efficient electron transfer between redox enzymes and electrode surfaces can be obtained by wiring redox enzymes using, for instance, polymer-bound redox relays as has been demonstrated as a basis for the design of amperometric biosensors, logic gates or sensor arrays and more general as a central aspect of “bioelectrochemistry”. Related devices allow exploiting the unique catalytic properties of enzymes, among which photosynthetic enzymes are especially attractive due to the possibility to trigger the redox reactions upon irradiation with light. Photocatalytic properties such as the light-driven water splitting by photosystem 2 make them unique candidates for the development of semiartificial devices which convert light energy into stable chemical products, like hydrogen. This review summarizes recent concepts for the integration of photosystem 1 and photosystem 2 into bioelectrochemical devices with special focus on strategies for the design of electron transfer pathways between redox enzymes and conductive supports.

Graphical abstract: Wiring photosynthetic enzymes to electrodes

Article information

Article type
Perspective
Submitted
11 Mar 2011
Accepted
10 Jun 2011
First published
21 Jun 2011

Energy Environ. Sci., 2011,4, 3263-3274

Wiring photosynthetic enzymes to electrodes

A. Badura, T. Kothe, W. Schuhmann and M. Rögner, Energy Environ. Sci., 2011, 4, 3263 DOI: 10.1039/C1EE01285A

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