Results 51 to 60 of about 7,080 (240)

Interfacial Water Configurations: Evolution and Implications for Electrocatalysis

Advanced Science, EarlyView.
A comprehensive and mechanistic understanding of how interfacial water structures govern reaction pathways. This review aims to bridge the gap between unraveling the intricate role of water structures and establishing robust design principles for advanced catalysts.
Aoqi Wang, Yang Song, Lin Guo, Chenchen Weng, Yanxia Yuan, Chaoyu Li, Xue Yang, Wei Lin   +7 more
wiley   +1 more source

Engineering Ultrastable Intrinsic Radicals: Graphene Quantum Dots With NIR‐II Emission for Dynamic Deep‐Tissue Bioimaging

Advanced Science, EarlyView.
Stable radicals are attractive for photonic and quantum information technologies but are often limited by instability. We stabilize intrinsic radicals in graphene quantum dots via 2D polymerization of perylene derivatives, where bilayer defect confinement suppresses quenching (100–500 K).
Qin Xu, Yijie Hou, Bingzhe Wang, Tesen Zhang, Yupeng Liu, Shuaiqi Li, Maohua Chen, Guichuan Xing, Dongbo Guo, Songnan Qu   +9 more
wiley   +1 more source

Electrocatalytic C─C Bond Formation Via Cyanide Interception of CO2 Reduction Intermediates

Advanced Science, EarlyView.
ABSTRACT Electrochemical CO2 reduction offers a sustainable route to convert greenhouse gas into high‐value‐added chemicals, yet product distributions remain largely limited to simple C1‐C3 molecules. Here, we report a new reaction in which CO2 reduction intermediates undergo direct C‐C coupling with an external carbon nucleophile under electrochemical
Gongbo Liu, Liuru Fang, Dayu Zhu, Aimin Li, Haoming Yu, Chunlu Ding, Yuen‐Leong Chow, Mengjie Liu, Jianqi Geng, San H. Thang, Jie Zhang   +10 more
wiley   +1 more source

Mechanism of Two-/Four-Electron Reduction of Nitroaromatics by Oxygen-Insensitive Nitroreductases: The Role of a Non-Enzymatic Reduction Step

Molecules, 2018
Oxygen-insensitive NAD(P)H:nitroreductases (NR) reduce nitroaromatics (Ar-NO2) into hydroxylamines (Ar-NHOH) through nitroso (Ar-NO) intermediates. Ar-NO may be reduced both enzymatically and directly by reduced nicotinamide adenine dinucleotide or its ...
Benjaminas Valiauga, Lina Misevičienė, Michelle H. Rich, David F. Ackerley, Jonas Šarlauskas, Narimantas Čėnas   +5 more
doaj   +1 more source

Ethylamine-driven amination of organic particles: mechanistic insights via key intermediates identification [PDF]

Atmospheric Chemistry and Physics
Atmospheric amines critically contribute to secondary aerosols formation via heterogeneous reactions, yet the molecular mechanisms governing heterogeneous amination chemistry of aerosols remain unclear.
P. Liu, J. Gao, Y. Hu, W. Yuan, Z. Zhou, F. Qi, M. Zeng   +6 more
doaj   +1 more source

Bromcyan und Hydroxylamine [PDF]

Berichte der deutschen chemischen Gesellschaft, 1904
n ...
openaire   +3 more sources

Molecular Probes for Evaluation of Oxidative Stress by In Vivo EPR Spectroscopy and Imaging: State-of-the-Art and Limitations

Magnetochemistry, 2019
Oxidative stress, defined as a misbalance between the production of reactive oxygen species and the antioxidant defenses of the cell, appears as a critical factor either in the onset or in the etiology of many pathological conditions.
Nikola Babić, Fabienne Peyrot
doaj   +1 more source

5-Aryl-2-(3,5-dialkyl-4-hydroxyphenyl)-4,4-dimethyl-4H-imidazole 3-Oxides and Their Redox Species: How Antioxidant Activity of 1-Hydroxy-2,5-dihydro-1H-imidazoles Correlates with the Stability of Hybrid Phenoxyl–Nitroxides

Molecules, 2020
Cyclic nitrones of the imidazole series, containing a sterically hindered phenol group, are promising objects for studying antioxidant activity; on the other hand, they can form persistent hybrid phenoxyl–nitroxyl radicals (HPNs) upon oxidation.
Svetlana A. Amitina, Elena V. Zaytseva, Natalya A. Dmitrieva, Alyona V. Lomanovich, Natalya V. Kandalintseva, Yury A. Ten, Ilya A. Artamonov, Alexander F. Markov, Dmitrii G. Mazhukin   +8 more
doaj   +1 more source

Durch anomere Amide ermöglichte divergente Synthese unsymmetrischer Harnstoffe, Carbamate, Thioester und Amide aus Aldehyden

Angewandte Chemie, EarlyView.
Eine divergente Aldehyd‐Funktionalisierungssequenz, ermöglicht durch ein anomeres Amid, erlaubt den Ein‐Topf‐Zugang zu unsymmetrischen Harnstoffen, Carbamaten, Thiocarbamaten, Thioestern und Amiden. Entscheidend für diese Transformation ist die Bildung von N‐Boc‐Hydroxamat‐Intermediaten, die als Plattformen für eine orthogonale Aktivierung über Lossen ...
Jasper L. Tyler, Meiyi Zeng, Julius Wiener, Marie‐Christin Leusmann, Colin Stein, Constantin G. Daniliuc, Frank Glorius   +6 more
wiley   +1 more source

Membrane-lipid therapy in operation: the HSP co-inducer BGP-15 activates stress signal transduction pathways by remodeling plasma membrane rafts.

PLoS ONE, 2011
Aging and pathophysiological conditions are linked to membrane changes which modulate membrane-controlled molecular switches, causing dysregulated heat shock protein (HSP) expression.
Imre Gombos, Tim Crul, Stefano Piotto, Burcin Güngör, Zsolt Török, Gábor Balogh, Mária Péter, J Peter Slotte, Federica Campana, Ana-Maria Pilbat, Akos Hunya, Noémi Tóth, Zsuzsanna Literati-Nagy, László Vígh, Attila Glatz, Mario Brameshuber, Gerhard J Schütz, Andrea Hevener, Mark A Febbraio, Ibolya Horváth, László Vígh   +20 more
doaj   +1 more source