Results 51 to 60 of about 1,729,497 (317)

Study of The Reaction Mechanism to Produce Nanocellulose-Graft-Chitosan Polymer

Nanomaterials, 2018
Cellulose and chitin are the most abundant polymeric materials in nature, capable of replacing conventional synthetic polymers. From them, cellulose nano/microfibers (CNFs/CMFs) and chitosan are obtained.
Jose Luis Sanchez-Salvador, Ana Balea, M. Concepcion Monte, Angeles Blanco, Carlos Negro   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

N-Nitroso products from the reaction of indoles with Angeli's salt [PDF]

, 2006
While nitroxyl (HNO) has been shown to engage in oxidation and hydroxylation reactions, little is known about its nitrosating potential. We therefore sought to investigate the kinetics of formation and identity of the reaction products of the classical ...
Peyrot, Fabienne, Feelisch, Martin, Claire Ducrocq, S. Bryan, Nathan, Ducrocq, Claire, Martin Feelisch, Bryan, Nathan S, O. Fernandez, Bernadette, Nathan S. Bryan, Fernandez, Bernadette O., Fabienne Peyrot, Bernadette O. Fernandez   +11 more
core   +1 more source

Crystal Structure of 4′-Phenyl-1′,4′-Dihydro-2,2′:6′,2″-Terpyridine: An Intermediate from the Synthesis of Phenylterpyridine

Crystals
The intermediate compound 4′-phenyl-1′,4′-dihydro-2,2′:6′,2″-terpyridine (pdhtpy) was isolated for the first time during the synthesis of 4′-phenyl-2,2′:6′,2″-terpyridine (ptpy) and characterised by single-crystal X-ray diffraction.
Alexander Sedykh, Maksim Zhernakov, Mariia Becker, Dirk G. Kurth, Klaus Müller-Buschbaum   +4 more
doaj   +1 more source

Metal-Mediated Addition of N-Nucleophiles to Isocyanides: Mechanistic Aspects

Molecules, 2017
Despite the long history of the investigation of nucleophilic addition to metal-bound isocyanides, some important aspects of the reaction mechanism remain unclear even for the simplest systems.
Maxim L. Kuznetsov, Vadim Yu. Kukushkin
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Mineral reaction and deformation in Plagioclase-Olivine composites : an experimental study [PDF]

, 2004
Deformation and metamorphism of rocks are fundamentally interrelated but the ways in which processes of reaction and deformation mutually influence each other are still poorly understood in natural rocks.
Ronde, Almar A. de
core   +1 more source

Decoding Regioselective Reaction Mechanism of the Gentisic Acid Catalyzed by Gentisate 1,2-Dioxygenase Enzyme

, 2022
Gentisate 1,2-dioxygenase (GDO), a ring-fission non-heme dioxygenase enzyme, displays a unique regioselective reaction of gentisic acid (GTQ) in the presence of molecular oxygen.
Ankan, Paul, Rabindranath, Manna, Rounak, Nath   +2 more
core   +1 more source

Comparison of Phosphonium and Sulfoxonium Ylides in Ru(II)-Catalyzed Dehydrogenative Annulations: A Density Functional Theory Study

Molecules
Density functional theory calculations have been performed to explore the detailed mechanism of a ruthenium-catalyzed dehydrogenative annulation between α-carbonyl phosphonium ylide (A) and sulfoxonium ylide (B).
Wei Zhou, Lei Zhang, Dan-Yang Liu, Xiaosi Ma, Jie Zhang, Jiajia Kang   +5 more
doaj   +1 more source

Chloro- and Dichloro-methylsulfonyl Nitrenes: Spectroscopic Characterization, Photoisomerization, and Thermal Decomposition

Molecules, 2018
Chloro- and dichloro-methylsulfonyl nitrenes, CH2ClS(O)2N and CHCl2S(O)2N, have been generated from UV laser photolysis (193 and 266 nm) of the corresponding sulfonyl azides CH2ClS(O)2N3 and CHCl2S(O)2N3, respectively.
Yang Yang, Xianxu Chu, Yan Lu, Manabu Abe, Xiaoqing Zeng   +4 more
doaj   +1 more source