Carotenoids linear dichroism

N soukpoe-Kossi, Ch., J. Sielewiesiuk, R.M. Leblanc, R.A. Bone, and J.T. Landrum. 1988. Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films. Biochim. Biophys. Acta 940 255-265. [Pg.29]

A, Absorption chi, chlorophyll car, carotenoid EET, excitonic energy transfer EF, exoplasmic fracture face EM, electron microscopy FWHM, full width at half maximum lEF, Isoelectric Focusing, LD, linear dichroism LHC, light harvesting complex PAGE, polyacrylamide gel electophoresis PF, protoplasmic fracture face PS, photosystem RC, reaction centre SDS, sodium dodecyl sulphate SSTT, single step transfer time. [Pg.148]

Well organized Langmuir-Blodgett (LB) films have been obtained from mixtures of a push-pull carotenoid and co-tricosenoic acid as shown in 7. These mixed films exhibit a very good cohesion, with an area of about 25 A2 per carotenoid molecule. They can easily be transferred onto solid substrates. Examination by UV-visible linear dichroism measurements confirms that the carotenoid chains are oriented perpendicularly to the surface of the substrate in card-packed aggregates, in which the polyenic chains interact via excitonic coupling, as indicated by the large hypsochromic shift of the tc-tc transition (20). [Pg.441]

Other Degraded Carotenoids Carotenoid-Protein Complexes Physical Methods Separation and Assay N.M.R. Spectroscopy Electronic Absorption Spectroscopy Resonance Raman Spectroscopy X-Ray Structures Linear Dichroism... [Pg.366]