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Showing 1 to 9 of 9 for “"photosynthetic reaction centers"”.
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Moessbauer Studies of Photosynthetic Reaction Centers From Rhodopseudomonas Sphaeroides R-26
… field Mossbauer measurements on ('57)Fe-enriched reaction centers (RCs) differing in ubiquinone content, detergent, oxidation state, or the presence of o-phenanthroline all show a single quadrupole doublet of similar splitting (DELTA)E(,Q), center shift (delta), and temperature dependence. The …
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Studies on the Photoreduction of Quinone Analogues in Bacterial Photosynthetic Reaction Centers
Made available in DSpace on 2014-12-15T23:19:00Z (GMT). No. of bitstreams: 1 8721709.pdf: 7766249 bytes, checksum: 5eee5ad815c5641146d939f706d0fe43 (MD5) Previous issue date: 1986
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Transient and Pulsed Electron Paramagnetic Resonance Spectroscopy on Type I Photosynthetic Reaction Centers
… light induced electron transfer(ET) in Type I photosynthetic reaction centers(RCs). First, pulsed EPR was used to compare PsaA-M688H and PsaB-M668H mutants of Chlamydomonas reinhardtii and Synechosystis sp. PCC 6803.The out-of-phase echo modulation curves combined with other EPR and optical …
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Computational Analysis of the Proton Transfer to the Secondary Quinone of Type II Photosynthetic Reaction Centers.
Für das Leben einer Vielzahl unterschiedlicher Arten wird molekularer Sauerstoff benötigt. Auf der Erde ist der wichtigste Prozess zur Herstellung von molekularem Sauerstoff die Photosynthese. Ein entscheidender Schritt der Photosynthese wird durch den Typ II des photosynthetischen …
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Photovoltaic devices using photosynthetic protein complexes
Photosynthetic proteins have been used as an active material in design of organic solar cells. Traditional organic solar cells have the limitation of not being able to absorb light in the visible-NIR region of the solar spectrum. This region corresponds to over 70% power of the total solar …
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Investigation of chiral porphyrin aggregates with heterodyne-detected vibrational sum frequency generation spectroscopy
In nature, photosynthetic organisms harvest and transport solar energy through the finely-tuned interplay between vibrational, electronic, and excitonic characteristics within photosynthetic reaction centers. These characteristics depend intimately on the precise arrangement of the reaction …
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The Binding Pockets of QA and QB in the Photosynthetic Reaction Center of Rba. sphaeroides Probed by Pulsed EPR
The bacteria Rhodobacter sphaeroides uses photosynthetic reaction centers to convert light into chemical energy. Light absorption by the reaction center results in electron transfer through a series of cofactors, the final two are identical ubiquinones (QA and QB). Both ubiquinones can be …
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Mössbauer studies of photsynthetic reaction centers from Rhodopseudomonas sphaeroides R-26
… field Mossbauer measurements on 57Fe-enriched reaction centers (RCs) differing in ubiquinone content, detergent, oxidation state, or the presence of o-phenanthroline all show a single quadrupole doublet of similar splitting 6EQ, center shift 0, and temperature dependence. The results are …
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Approaching magnetic field effects in biology using the radical pair mechanism
… that lets the yields of certain radical pair reactions depend on the applied magnetic field [1, 2, 3]. This goal seems reasonable considering the known roles of many biological free radicals in cancer, disease, aging, development, and cellular signaling, the constant reminders in the media to …