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Periplasmic nitrate reductases and formate dehydrogenases: control of the chemical properties of Mo and W for fine tuning of reactivity and substrate specificity and metabolic role
(Elsevier, 2013-01)
Mo- and W-enzymes are widely distributed in biology as they can be found in all domains of life. They perform key roles in several metabolic pathways catalyzing important reactions of the biogeochemical cycles of the more ...
Rhodium-catalyzed carbonylation of allylaminoalcohols: Catalytic synthesis of N-(2-hydroxy-alkyl)-gamma-lactams and bicyclic oxazolidines
(ELSEVIER SCIENCE BV, 2008)
Gamma-lactams and bicyclic oxazolidines are important structural frameworks in both synthetic organic chemistry and related pharmacological fields. These heterocycles can be prepared by the rhodium-catalyzed carbonylation ...
Ethanol Steam reforming of hydrogen generation over structures catalysts
(Elsevier, 2013-02)
The present paper reports on the preparation, characterization and reaction evaluation of structured catalysts toward hydrogen generation via ethanol steam reforming. To these ends, 400 cpsi cordierite monoliths were ...
Fumarate and cytosolic pH as modulators of the synthesis or consumption of C4 organic acids through NADP-malic enzyme in Arabidopsis thaliana
(Springer, 2013-01)
Arabidopsis thaliana is a plant species that accumulates high levels of organic acids and uses them as carbon, energy and reducing power sources. Among the enzymes that metabolize these compounds, one of the ...
A comparative study of glycerol dehydration catalyzed by micro/mesoporous MFI zeolites
(Elsevier, 2013-04)
The catalytic properties of monomodal microporous and bimodal micro-mesoporous zeolites were investigated in the gas-phase dehydration of glycerol. The desilication methodology used to produce the mesoporous zeolites ...
Analysis of a preferential action of alfa-amylase from B. licheniformis towards amorphous regions of waxy maize starch
(Elsevier, 2014-01)
Waxy maize starch was subjected to -amylase (Bacillus licheniformis) hydrolysis in buffered medium todetermine the evolution of reaction in quantitative terms and also in terms of the morphology and crys-tallinity of the ...
ATR-FTIR Spectrokinetic Analysis of the CO Adsorption and Oxidation at Water/Platinum Interface
(Elsevier, 2017-04-01)
Attenuated total reflection infrared (ATR-IR) spectroscopy is a powerful tool to investigate reaction pathways in liquid(reactive)/solid(catalyst) systems. Catalysts are commonly deposited on an internal reflection ...
Computational modeling of the catalytic mechanism of human placental alkaline phosphatase (PLAP)
(American Chemical Society, 2011-10)
Alkaline phosphatases (APs) catalyze the hydrolysis and transphosphorylation of phosphate monoesters. Quantum mechanical, molecular dynamics, and molecular docking techniques were applied to computationally model the ...
Phase evolution in the mechanochemical synthesis of stabilized nanocrystalline (ZrO2)0.97(Y2O3)0.03 solid solution by PAC technique
(Elsevier, 2013-07)
The mechanochemical activation process has proved to be an effective technique to enhance a solid-state reaction at relatively low temperatures. In such a process, the mechanical effects of milling, such as reduction of ...
A chemical study of β-carotene oxidation by ozone in an organic model system and the identification of the resulting products
(2011)
Carotenoids are present in many foods. Due to their polyenic chains, they undergo oxidation reactions which may give several compounds. Ozone, a powerful antimicrobial agent, is applied in the food industry due to its high ...