منابع مشابه
Light-Harvesting Complex: Rings of light
The atomic structure of the bacterial light-harvesting complex helps to explain how the energy of sunlight is efficiently absorbed and transferred between bacteriochlorophyll molecules towards the reaction centre.
متن کاملLight harvesting complex II B850 excitation dynamics.
The dynamics of excitation energy transfer within the B850 ring of light harvesting complex 2 from Rhodobacter sphaeroides and between neighboring B850 rings is investigated by means of dissipative quantum mechanics. The assumption of Boltzmann populated donor states for the calculation of intercomplex excitation transfer rates by generalized Forster theory is shown to give accurate results sin...
متن کاملXanthophylls in light-harvesting complex II of higher plants: light harvesting and triplet quenching.
A spectral and functional assignment of the xanthophylls in monomeric and trimeric light-harvesting complex II of green plants has been obtained using HPLC analysis of the pigment composition, laser-flash induced triplet-minus-singlet, fluorescence excitation, and absorption spectra. It is shown that violaxanthin is not present in monomeric preparations, that it has most likely a red-most absor...
متن کاملComplex Photonic Structures for Light Harvesting
Over the last few years, micro- and nanophotonics have roused a strong interest in the scientific community for their promising impact on the development of novel kinds of solar cells. Certain thin- and ultrathin-film solar cells are made of innovative, often cheap, materials which suffer from a low energy conversion efficiency. Light-trapping mechanisms based on nanophotonics principles are pa...
متن کاملCase Study: Light Harvesting Complex 2
Cover Figure: Purple bacteria live at the bottom of ponds or lakes, and some purple bacteria can harvest light and produce energy through photosynthesis. Their photosynthetic apparatus are found inside the bacterial membrane, consisting of several proteins. One of these proteins is the ring-like Light Harvesting Complex 2, the protein investigated in this case study. All files can be found in t...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1995
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(95)00163-1