beta-Carotene to bacteriochlorophyll c energy transfer in self-assembled aggregates mimicking chlorosomes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10081926" target="_blank" >RIV/00216208:11320/10:10081926 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12640/10:00012182 RIV/60077344:_____/10:00348819
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
beta-Carotene to bacteriochlorophyll c energy transfer in self-assembled aggregates mimicking chlorosomes
Original language description
Carotenoids are together with bacteriochlorophylls important constituents of chlorosomes, the light-harvesting antennae of green photosynthetic bacteria. Majority of bacteriochlorophyll molecules form selfassembling aggregates inside the chlorosomes. Aggregates of bacteriochlorophylls with optical properties similar to those of chlorosomes can also be prepared in non-polar organic solvents or in aqueous environments when a suitable non-polar molecule is added. In this work, the ability of b-carotene toinduce aggregation of bacteriochlorophyll c in aqueous buffer was studied. Excitation relaxation and energy transfer in the carotenoid-bacteriochlorophyll assemblies were measured using femtosecond and nanosecond transient absorption spectroscopy. A fast, 100-fs energy transfer from the S2 state of b-carotene to bacteriochlorophyll c was revealed, while no evidence for significant energy transfer from the S1 state was found.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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