Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films |
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Authors: | Christophe N N'soukpo-Kossi Jan Sielewiesiuk Roger M Leblanc Richard A Bone John T Landrum |
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Institution: | Christophe N. N'soukpoé-Kossi, Jan Sielewiesiuk, Roger M. Leblanc, Richard A. Bone,John T. Landrum |
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Abstract: | The linear dichroism of single monolayers of lutein, zeaxanthin and a mixture of lutein and synthetic phosphatidylcholine has been measured. The angle of orientation of the carotenoid molecules was found to lie between 45° and 51° relative to the plane of the solid support. Although the adsorbed monolayers were mostly in a monomeric state, microscopic observations, as well as the II-A isotherms, indicated the existence of crystalline islets. The results have been interpreted in connection with Haidinger's polarization brushes. |
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Keywords: | Carotenoid Linear dichroism Langmuir-Blodgett film Macula Haidinger brush Henlé fiber (Retina) |
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