62 research outputs found
Linear dichroism and circular dichroism in photosynthesis research
The efficiency of photosynthetic light energy conversion depends largely on the molecular architecture of the photosynthetic membranes. Linear- and circular-dichroism (LD and CD) studies have contributed significantly to our knowledge of the molecular organization of pigment systems at different levels of complexity, in pigmentâprotein complexes, supercomplexes, and their macroassemblies, as well as in entire membranes and membrane systems. Many examples show that LD and CD data are in good agreement with structural data; hence, these spectroscopic tools serve as the basis for linking the structure of photosynthetic pigmentâprotein complexes to steady-state and time-resolved spectroscopy. They are also indispensable for identifying conformations and interactions in native environments, and for monitoring reorganizations during photosynthetic functions, and are important in characterizing reconstituted and artificially constructed systems. This educational review explains, in simple terms, the basic physical principles, and theory and practice of LD and CD spectroscopies and of some related quantities in the areas of differential polarization spectroscopy and microscopy
Excitation Transport and Quenching in Photosynthetic Bacteria at Normal and Cryogenic Temperatures
Exciton State and Energy Transfer in Bacterial Membranes: The Role of Pigment-Protein Cyclic Unit Structures
Neuroprotective Effect of NMDA Receptor Glycine Recognition Site Antagonism Persists When Brain Temperature is Controlled
Energy Transfer and Exciton Coupling in Isolated B800â850 Complexes of Chromatium Tepidum
Structural Information on Light-Harvesting Complex II as Obtained from Exciton Calculations and Polarized Spectroscopy
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