Results 21 to 30 of about 1,600,579 (309)

Role of tyrosine M210 in the initial charge separation of reaction centers of Rhodobacter sphaeroides [PDF]

open access: yes, 1990
Femtosecond spectroscopy was used in combination with site-directed mutagenesis to study the influence of tyrosine M210 (YM210) on the primary electron transfer in the reaction center of Rhodobacter sphaeroides.
Zinth, Wolfgang   +4 more
core   +1 more source

Study of deactivation in mesocellular foam carbon (MCF-C) catalyst used in gas-phase dehydrogenation of ethanol

open access: yesScientific Reports, 2021
Mesocellular foam carbon (MCF-C) is one the captivating materials for using in gas phase dehydrogenation of ethanol. Extraordinary, enlarge pore size, high surface area, high acidity, and spherical shape with interconnected pore for high diffusion.
Yoottapong Klinthongchai   +3 more
doaj   +1 more source

Reconstructing the origin of oxygenic photosynthesis: do assembly and photoactivation recapitulate evolution?

open access: yesFrontiers in Plant Science, 2016
Due to the great abundance of genomes and protein structures that today span a broad diversity of organisms, now more than ever before, it is possible to reconstruct the molecular evolution of protein complexes at an incredible level of detail.
Tanai eCardona
doaj   +1 more source

High-throughput materials screening algorithm based on first-principles density functional theory and artificial neural network for high-entropy alloys

open access: yesScientific Reports, 2022
This work introduced the high-throughput phase prediction of PtPd-based high-entropy alloys via the algorithm based on a combined Korringa-Kohn-Rostoker coherent potential approximation (KKR-CPA) and artificial neural network (ANN) technique.
Meena Rittiruam   +12 more
doaj   +1 more source

Comparative study on the effect of different copper loading on catalytic behaviors and activity of Cu/ZnO/Al2O3 catalysts toward CO and CO2 hydrogenation

open access: yesHeliyon, 2021
The ternary Cu/ZnO/Al2O3 (CZA) catalysts having different Cu loading were prepared by the co-precipitation method. Then, they were used in CO and CO2 hydrogenation to produce methanol under atmospheric pressure at 250 °C. The high Cu loading CZA catalyst
Tanutporn Kamsuwan   +5 more
doaj   +1 more source

Recombination dynamics in bacterial photosynthetic reaction centers [PDF]

open access: yes, 1982
The time dependence of magnetic field effects on light absorption by triplet-state and radical ions in quinone-depleted reaction centers of Rhodopseudomonas sphaeroides strain R-26 has been investigated.
Haberkorn, R.   +8 more
core   +1 more source

Novel multi–SO3H functionalized ionic liquids as highly efficient catalyst for synthesis of biodiesel

open access: yesGreen Energy & Environment, 2021
Biodiesel is an attractive alternative to fossil fuels due to the energy and environmental concerns. In this paper, seven different multi –SO3H functionalized ILs based on the low-cost less-substituted amines, which contained massive sites for ...
Meichen Li   +5 more
doaj   +1 more source

CHEMICALLY MODIFIED PHOTOSYNTHETIC BACTERIAL REACTION CENTERS: CIRCULAR DICHROISM, RAMAN RESONANCE, LOW TEMPERATURE ABSORPTION, FLUORESCENCE AND ODMR SPECTRA AND POLYPEPTIDE COMPOSITION OF BOROHYDRIDE TREATED REACTION CENTERS FROM Rhodobacter sphaeroides R26 [PDF]

open access: yes, 1988
Reaction centers from Rhodobacter sphaeroides have been modified by treatment with sodium borohydride similar to the original procedure [Ditson et al., Biochim. Biophys. Acta 766, 623 (1984)], and investigated spectroscopically and by gel electrophoresis.
A. Angerhofer   +11 more
core   +1 more source

A Photovoltaic Device Using an Electrolyte Containing Photosynthetic Reaction Centers

open access: yesEnergies, 2010
The performance of bio-photovoltaic devices with a monolayer of the immobilized photosynthetic reaction center (RC) is generally low because of weak light absorption and poor charge transfer between the RC and the electrode.
Ali Mahmoudzadeh   +4 more
doaj   +1 more source

On a high photocatalytic activity of high-noble alloys Au–Ag/TiO2 catalysts during oxygen evolution reaction of water oxidation

open access: yesScientific Reports, 2022
The analysis via density functional theory was employed to understand high photocatalytic activity found on the Au–Ag high-noble alloys catalysts supported on rutile TiO2 during the oxygen evolution of water oxidation reaction (OER).
Anum Shahid Malik   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy