Artificial photosynthesis at octane/water interface in the presence of hydrated chlorophyll a oligomer thin film

Alexander Georgievic Volkov; M. I. Gugeshashvili; M. D. Kandelaki; V. S. Markin; Bogumil Zelent; G. Munger; Roger M. Leblanc

doi:10.1117/12.45115

1 March 1991 Artificial photosynthesis at octane/water interface in the presence of hydrated chlorophyll a oligomer thin film

Alexander Georgievic Volkov, M. I. Gugeshashvili, M. D. Kandelaki, V. S. Markin, Bogumil Zelent, G. Munger, Roger M. Leblanc

Author Affiliations +

Proceedings Volume 1436, Photochemistry and Photoelectrochemistry of Organic and Inorganic Molecular Thin Films; (1991) https://doi.org/10.1117/12.45115
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

The interface between two immiscible liquids with immobilized photosynthetic pigments can serve as the simplest model of a biological membrane convenient for the investigation of photoprocesses that are accompanied by spatial separation of charges. Oxygen evolution with a quantum efficiency of 10 - 20% can be seen by illuminating the octane/water interface having hydrated oligomer of chlorophyll (alpha) with proton acceptors in octane and electron acceptors in water. Considering the importance of such a model of photosynthetic membranes, in the present communication we have investigated the optical and absorption properties of wet chlorophyll (alpha) . The absorption, circular dichroism, and fluorescence properties of chlorophyll (alpha) in a non-polar solvent and in thin films were studied. The adsorption isotherms of dry and wet chlorophyll (alpha) at octane/water interface were also measured. The difference in adsorption behavior of chlorophyll (alpha) dissolved in dry and wet octane is discussed.

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Alexander Georgievic Volkov, M. I. Gugeshashvili, M. D. Kandelaki, V. S. Markin, Bogumil Zelent, G. Munger, and Roger M. Leblanc "Artificial photosynthesis at octane/water interface in the presence of hydrated chlorophyll a oligomer thin film", Proc. SPIE 1436, Photochemistry and Photoelectrochemistry of Organic and Inorganic Molecular Thin Films, (1 March 1991); https://doi.org/10.1117/12.45115

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