Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films

Christophe N. N'soukpoé-Kossi; Jan Sielewiesiuk; Roger M. Leblanc; Richard A. Bone; John T. Landrum

doi:10.1016/0005-2736(88)90200-3

Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films

Christophe N. N'soukpoé-Kossi, Jan Sielewiesiuk, Roger M. Leblanc, Richard A. Bone, John T. Landrum

Chemistry

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

51 Scopus citations

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.

Original language	English (US)
Pages (from-to)	255-265
Number of pages	11
Journal	BBA - Biomembranes
Volume	940
Issue number	2
DOIs	https://doi.org/10.1016/0005-2736(88)90200-3
State	Published - May 24 1988

Keywords

(Retina)
Carotenoid
Haidinger brush
Henlé fiber
Langmuir-Blodgett film
Linear dichroism
Macula

ASJC Scopus subject areas

Biochemistry
Biophysics
Cell Biology

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10.1016/0005-2736(88)90200-3

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title = "Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films",

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.",

keywords = "(Retina), Carotenoid, Haidinger brush, Henl{\'e} fiber, Langmuir-Blodgett film, Linear dichroism, Macula",

author = "N'soukpo{\'e}-Kossi, {Christophe N.} and Jan Sielewiesiuk and Leblanc, {Roger M.} and Bone, {Richard A.} and Landrum, {John T.}",

note = "Funding Information: The authors would like to express their gratitude to Miss Louise Leblanc for her assistance in performing part of this study. This work was supported by the Natural Sciences and Engineering Research Council of Canada and the Fonds pour la Formation de Chercheurs et l'Aide ~t la Recherche.",

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AU - N'soukpoé-Kossi, Christophe N.

AU - Sielewiesiuk, Jan

AU - Leblanc, Roger M.

AU - Bone, Richard A.

AU - Landrum, John T.

N1 - Funding Information: The authors would like to express their gratitude to Miss Louise Leblanc for her assistance in performing part of this study. This work was supported by the Natural Sciences and Engineering Research Council of Canada and the Fonds pour la Formation de Chercheurs et l'Aide ~t la Recherche.

PY - 1988/5/24

Y1 - 1988/5/24

N2 - 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.

AB - 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.

KW - (Retina)

KW - Carotenoid

KW - Haidinger brush

KW - Henlé fiber

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KW - Linear dichroism

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