The design and synthesis of artificial photosynthetic antennas, reaction centres and membranes

Thomas Moore; Ana Moore; D. Gust; J. Barber; R. Van Grondelle; L. Sun; L. Hammarström

doi:10.1098/rstb.2002.1147

The design and synthesis of artificial photosynthetic antennas, reaction centres and membranes

Thomas Moore, Ana Moore, D. Gust, J. Barber, R. Van Grondelle, L. Sun, L. Hammarström

Molecular Sciences, School of (SMS)

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Artificial antenna systems and reaction centres synthesized in our laboratory are used to illustrate that structural and thermodynamic factors controlling energy and electron transfer in these constructs can be modified to optimize performance. Artificial reaction centres have been incorporated into liposomal membranes where they convert light energy to vectorial redox potential. This redox potential drives a Mitchellian, quinone-based, proton-transporting redox loop that generates a δμH⁺ of ca. 4.4 kcal mol^-1 comprising δpH ca. 2.1 and δΨ ca. 70 mV. In liposomes containing CF₀F₁-ATP synthase, this system drives ATP synthesis against an ATP chemical potential similar to that observed in natural systems.

Original language	English (US)
Pages (from-to)	1481-1498
Number of pages	18
Journal	Philosophical Transactions of the Royal Society B: Biological Sciences
Volume	357
Issue number	1426
DOIs	https://doi.org/10.1098/rstb.2002.1147
State	Published - Oct 29 2002

Keywords

Artificial antenna
Artificial photosynthesis
Artificial reaction centres

ASJC Scopus subject areas

General Biochemistry, Genetics and Molecular Biology
General Agricultural and Biological Sciences

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10.1098/rstb.2002.1147

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AU - Gust, D.

AU - Barber, J.

AU - Van Grondelle, R.

AU - Sun, L.

AU - Hammarström, L.

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AB - Artificial antenna systems and reaction centres synthesized in our laboratory are used to illustrate that structural and thermodynamic factors controlling energy and electron transfer in these constructs can be modified to optimize performance. Artificial reaction centres have been incorporated into liposomal membranes where they convert light energy to vectorial redox potential. This redox potential drives a Mitchellian, quinone-based, proton-transporting redox loop that generates a δμH+ of ca. 4.4 kcal mol-1 comprising δpH ca. 2.1 and δΨ ca. 70 mV. In liposomes containing CF0F1-ATP synthase, this system drives ATP synthesis against an ATP chemical potential similar to that observed in natural systems.

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KW - Artificial reaction centres

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The design and synthesis of artificial photosynthetic antennas, reaction centres and membranes

Abstract

Keywords

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