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 a 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 a. The absorption, circular dichroism, and fluorescence properties of chlorophyll a in a non-polar solvent and in thin films were studied. The adsorption isotherms of dry and wet chlorophyll a at octane/water interface were also measured. The difference in adsorption behavior of chlorophyll a dissolved in dry and wet octane is discussed.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Marcus F. Lawrence, Arthur J. Frank, S. Ramasesha, Carl C. Wamser |
| Publisher | Publ by Int Soc for Optical Engineering |
| Pages | 68-79 |
| Number of pages | 12 |
| Volume | 1436 |
| State | Published - 1991 |
| Externally published | Yes |
| Event | Photochemistry and Photoelectrochemistry of Organic and Inorganic Molecular Thin Films - Los Angeles, CA, USA Duration: Jan 23 1991 → Jan 24 1991 |
Other
| Other | Photochemistry and Photoelectrochemistry of Organic and Inorganic Molecular Thin Films |
|---|---|
| City | Los Angeles, CA, USA |
| Period | 1/23/91 → 1/24/91 |
Fingerprint
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Artificial photosynthesis at octane/water interface in the presence of hydrated chlorophyll a oligomer thin film. / Volkov, A. G.; Gugeshashvili, M. I.; Kandelaki, M. D.; Markin, V. S.; Zelent, B.; Munger, G.; Leblanc, Roger.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Marcus F. Lawrence; Arthur J. Frank; S. Ramasesha; Carl C. Wamser. Vol. 1436 Publ by Int Soc for Optical Engineering, 1991. p. 68-79.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Artificial photosynthesis at octane/water interface in the presence of hydrated chlorophyll a oligomer thin film
AU - Volkov, A. G.
AU - Gugeshashvili, M. I.
AU - Kandelaki, M. D.
AU - Markin, V. S.
AU - Zelent, B.
AU - Munger, G.
AU - Leblanc, Roger
PY - 1991
Y1 - 1991
N2 - 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 a 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 a. The absorption, circular dichroism, and fluorescence properties of chlorophyll a in a non-polar solvent and in thin films were studied. The adsorption isotherms of dry and wet chlorophyll a at octane/water interface were also measured. The difference in adsorption behavior of chlorophyll a dissolved in dry and wet octane is discussed.
AB - 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 a 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 a. The absorption, circular dichroism, and fluorescence properties of chlorophyll a in a non-polar solvent and in thin films were studied. The adsorption isotherms of dry and wet chlorophyll a at octane/water interface were also measured. The difference in adsorption behavior of chlorophyll a dissolved in dry and wet octane is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0025724528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025724528&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0025724528
VL - 1436
SP - 68
EP - 79
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Lawrence, Marcus F.
A2 - Frank, Arthur J.
A2 - Ramasesha, S.
A2 - Wamser, Carl C.
PB - Publ by Int Soc for Optical Engineering
ER -