Results 51 to 60 of about 3,330,189 (298)

Reaction mechanism of atomic layer deposition of zirconium oxide using zirconium precursors bearing amino ligands and water

Frontiers in Chemistry, 2022
As a unique nanofabrication technology, atomic layer deposition (ALD) has been widely used for the preparation of various materials in the fields of microelectronics, energy and catalysis.
Rui Xu, Zhongchao Zhou, Jing Li, Xu Zhang, Yuanyuan Zhu, Hongping Xiao, Lina Xu, Yihong Ding, Aidong Li, Guoyong Fang   +9 more
doaj   +1 more source

Mechanistic Study of Gold(I)-Catalyzed Intermolecular Hydroamination of Allenes [PDF]

, 2010
The intermolecular hydroamination of allenes occurs readily with hydrazide nucleophiles, in the presence of 3-12% Ph_3PAuNTf_2. Mechanistic studies have been conducted to establish the resting state of the gold catalyst, the kinetic order of the reaction,
Benitez, Diego, Goddard, William A., III, Tkatchouk, Ekaterina, Toste, F. Dean, Wang, Jane Z.   +4 more
core   +1 more source

Femtosecond dynamics of hydrogen elimination: benzene formation from cyclohexadiene [PDF]

, 2000
Using femtosecond-resolved mass spectrometry in a molecular beam, we report real-time study of the hydrogen elimination reaction of 1,4-cyclohexadiene. The experimental observation of the ultrafast stepwise H-elimination elucidates the reaction dynamics ...
De Feyter, Steven, Diau, Eric W.-G., Zewail, Ahmed H.   +2 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Determining the Oxidation Mechanism through Radical Intermediates in Polysorbates 80 and 20 by Electron Paramagnetic Resonance Spectroscopy

Pharmaceuticals
Polysorbates 20 and 80 (PS20 and PS80) are added to many commercial biologic and vaccine pharmaceuticals. It is commonly known that these polysorbates undergo a radical oxidation mechanism; however, the identity of these radical intermediates has not ...
Adam T. Sutton, Richard R. Rustandi
doaj   +1 more source

Reaction mechanism of SiC-TiSi₂ by melt infiltration method

Cailiao gongcheng, 2019
The melt infiltration method is one of the main preparation method of SiC matrix composites. Complex reactions and multi-component diffusion are involved in molten-Si infiltration of a C-based preform.
ZHOU Yi-ran, LIU Hu, YANG Jin-hua, JIANG Zhuo-yu, LYU Xiao-xu, JIAO Jian   +5 more
doaj   +1 more source

Copper-Free Halodediazoniation of Arenediazonium Tetrafluoroborates in Deep Eutectic Solvents-like Mixtures

Molecules, 2022
Deep Eutectic Solvent (DES)-like mixtures, based on glycerol and different halide organic and inorganic salts, are successfully exploited as new media in copper-free halodediazoniation of arenediazonium salts.
Giovanni Ghigo, Matteo Bonomo, Achille Antenucci, Chiara Reviglio, Stefano Dughera   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Revue bibliographique : les lipoxygénases du soja [PDF]

Biotechnologie, Agronomie, Société et Environnement, 1997
A review : soybean lipoxygenases. In this review, the authors take stock of the current knowledge in the arec of soybean lipoxygenases. They focus on the comprehension of reactional mechanisms (substrates, inhibitors, active site, etc.).
Michel Marlier, Marie-Laure Fauconnier
doaj  

Mechanisms of metasomatic reactions [PDF]

Mineralogy and Petrology, 2009
Fluid-aided mass transfer and subsequent mineralre-equilibrationarethetwodefiningfeaturesofmetasomatismand must be present in order for metamorphism to occur.Taking into account geological time scales, the amount offluidrequiredneednotbegreat(considerablylessthan0.01%of the total volume) nor even in continuous flow but the fluidmust be chemically ...
Harlov, D., Marschall, H.
openaire   +4 more sources