Results 261 to 270 of about 114,880 (292)

Electron Transfer Dynamics in Photosynthesis

1990
The mechanism of the primary charge separation in the bacterial reaction centre (RC) is of central importance for the elucidation of the energy conversion processes in photosynthesis. All the mechanisms proposed for the primary electron transfer (ET) from the singlet excited state of the bacteriochlorophyll dimer (P) along the A branch of the RC ...
Joshua Jortner, M. Bixon, M. E. Michel-Beyerle   +2 more
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Photosynthesis: A Dynamic Process

2015
Algae are endowed with oxygenic photosynthesis, enabling conversion of solar energy into chemical energy. Production of biofuels from algae also depends on photosynthetic efficiency, and comprehension of the photosynthetic process is therefore essential, especially if production of cheap energy carriers is considered, and requires to maximize ...
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Dynamic approaches to the mechanism of photosynthesis

Photosynthesis Research, 1994
An account of the author's life and scientific research is presented. Two main lines of research have been pursued: (1) Studies on the physiological aspect of photosynthesis started from experiments with crops under field conditions and then extended to the study of photosynthesis in nature; and (2) studies on the mechanism of photophosphorylation and ...
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Dynamical stabilities of photosynthesis systems: Quantum chaos approach

Chaos, Solitons & Fractals, 2020
Abstract Bio-based materials offer new potentialities for photodetection applications due to their sensitivity, selectivity and biocompatibility. The present paper proposes an energy transfer mechanism associated with the incident light frequency. Based on the premise that the competition between the electrical current and phonon flux determines the ...
P. Hosseinnezhad, S. Behnia, S. Fathizadeh   +2 more
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Artificial Photosynthesis at Dynamic Self‐Assembled Interfaces in Water

Chemistry – A European Journal, 2015
AbstractArtificial photosynthesis is one of the big scientific challenges of today. Self‐assembled dynamic interfaces, such as vesicles or micelles, have been used as microreactors to mimic biological photosynthesis. These aggregates can help to overcome typical problems of homogeneous photocatalytic water splitting.
Malte, Hansen, Stefan, Troppmann, Burkhard, König   +2 more
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Elements of a dynamic systems model of canopy photosynthesis

Current Opinion in Plant Biology, 2012
Improving photosynthesis throughout the full canopy rather than photosynthesis of only the top leaves of the canopy is central to improving crop yields. Many canopy photosynthesis models have been developed from physiological and ecological perspectives, however most do not consider heterogeneities of microclimatic factors inside a canopy, canopy ...
Xin-Guang, Zhu, Qingfeng, Song, Donald R, Ort   +2 more
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Photosynthesis: Dynamics of Proteins and Charge Transfer

1987
To study functional and dynamic properties of bacterial photosynthetic membranes and their active fragments — reaction centre pigment-protein complexes (RC) a variety of techniques were used including high time resolution optical absorption and fluorescence spectroscopy, ESR and NMR spin-echo monitoring, nuclear gamma-resonance and Rayleigh scattering ...
A. A. Kononenko, A. B. Rubin
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Dynamic Light Regulation of Photosynthesis (A Review)

Russian Journal of Plant Physiology, 2004
Regulatory reactions providing the photosynthetic apparatus with the ability to respond to variations of irradiance by changes in activities of the light and the dark stages of photosynthesis within a time range of seconds and minutes are considered in the review.
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Dynamics of the primary events in bacterial photosynthesis

Journal of the American Chemical Society, 1980
This paper considers the primary light-induced electron-transfer (ET) processes in the reaction center of photosynthetic bacteria which involved ET from the electronically excited state of the bacteriochlorophyll a dimer (BChL)/sub 2/ to bacteriopheophytin (BPh) ((I.1)) and ET from BPh/sup -/ to ubiquinone (Q) ((I.2)).
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Solar utilization beyond photosynthesis

Nature Reviews Chemistry, 2022
Jiangquan Lv, Jia-Fang XIE, Xiang Zhang
exaly