Results 71 to 80 of about 14,380 (267)

Mobility‐Lifetime Products in Organic Infrared Photodiodes with Peak Absorption at 1550 nm

Advanced Electronic Materials, EarlyView.
This study analyzes the mobility‐lifetime products in organic infrared photodiodes with different donor‐to‐acceptor ratios to examine charge collection performance. Abstract Infrared photodiodes based on organic semiconductors are promising for low‐cost sensors that operate at room temperature. However, their realization remains hampered by poor device
Bogyeom Seo, Tyler Bills, Paramasivam Mahalingavelar, Woojo Kim, Hyeong Ju Eun, Jong H. Kim, Jason D. Azoulay, Tse Nga Ng   +7 more
wiley   +1 more source

Gold-catalyzed oxidation of arylallenes: Synthesis of quinoxalines and benzimidazoles

Beilstein Journal of Organic Chemistry, 2011
A gold-catalyzed oxidation of arylallenes to form α-diketones and aldehydes in good yields is presented. Further directed synthesis of quinoxalines and benzimidazoles, via the condensation of the resulting α-diketones and aldehydes with benzene-1,2 ...
Dong-Mei Cui, Dan-Wen Zhuang, Ying Chen, Chen Zhang   +3 more
doaj   +1 more source

Discerning Blend Microstructure and Charge Recombination for Stable Biorenewable‐Based Organic Photovoltaics

Advanced Energy Materials, EarlyView.
A combination of morphological, electrical, and spectroscopy techniques is used to evaluate the degradation mechanisms of non‐fullerene (NFA)‐based organic photovoltaics (OPVs). Blends based on Y12 are more stable than Y6, aspeciallyOPVs from FO6‐T:Y12 demonstrated superior stability with an extrapolated T80 of over 2000 hours under maximum power point 
Eva Mazzolini, Zhuoran Qiao, Jolanda Muller, Francesco Furlan, Matteo Sanviti, Davide Nodari, Martina Rimmele, Alberto Collauto, Carsten Deibel, Martin Heeney, Jaime Martin, Flurin Eisner, Jenny Nelson, Nicola Gasparini, Julianna Panidi   +14 more
wiley   +1 more source

New opportunities for the synthesis of quinoxaline derivatives

Chimica Techno Acta, 2019
Convenient methods for the synthesis of quinoxaline derivatives with the use of nucleophilic aromatic substitution of hydrogen in heteroaromatic part of molecule in conditions of the acid catalysis were elaborated.
Olga S. Koptyaeva, Yuriy A. Azev, Yuriy M. Shafran, Tatyana A. Pospelova, Oleg N. Chupakhin   +4 more
doaj   +1 more source

Tuning Exciton Dynamics and Energy Transfer in Ternary Organic Solar Cells Using Pyridine‐Flanked DPP Acceptors

Advanced Energy Materials, EarlyView.
Three novel non‐fullerene acceptors with a DPP–pyridine‐based structure have been studied, each incorporating different π‐bridging units. LM‐Se exhibited the highest efficiency among the NFAs, and its incorporation into a ternary blend with D18 and Y6 (PCE = 17.53%) significantly enhanced performance due to improved charge dynamics and favorable film ...
Leydi M. Moreno, Rocío Dominguez, Pilar de la Cruz, Hemraj Dahiya, Rahul Singhal, Ganesh. D. Sharma, Fernando Langa   +6 more
wiley   +1 more source

Synthesis and biological evaluation of novel substituted pyrrolo[1,2-a]quinoxaline derivatives as inhibitors of the human protein kinase CK2 [PDF]

, 2013
Herein we describe the synthesis and properties of substituted phenylaminopyrrolo[1,2-a]quinoxaline-carboxylic acid derivatives as a novel class of potent inhibitors of the human protein kinase CK2.
Alvarez, Lautaro Damian, Baratin, Sophie, Bollacke, Andre, Desplat, Vanessa, Guillon, Jean, Joachim, Jose, Le Borgne, Marc, Marchivie, Mathieu, Moreau, Stéphane, Pecci, Adali, Pinaud, Noël, Rimbault, Charlotte, Roche, Séverine, Savrimoutou, Solène   +13 more
core   +2 more sources

Illuminating Tau Aggregates: Multiscale Approaches for Detection, Imaging, and Understanding

Aggregate, EarlyView.
This review presents recent advances in molecular imaging of tauopathies, focusing on tau aggregation mechanisms, structural polymorphism, and imaging strategies. It highlights the development of tau‐selective fluorescent probes and PET tracers and explores emerging techniques such as cryo‐EM and super‐resolution imaging, offering a multiscale ...
Kaustubh R. Bhuskute, Jiayi Fan, Amandeep Kaur   +2 more
wiley   +1 more source

Rationale for tau aggregation inhibitor therapy in Alzheimer's disease and other tauopathies [PDF]

, 2010
Preprin
Harrington, Charles R, Storey, John M D, Wischik, Claude M, Wischik, Damon J   +3 more
core   +1 more source

Large-Scale Solvent-Free Chlorination of Hydroxy-Pyrimidines, -Pyridines, -Pyrazines and -Amides Using Equimolar POCl3

Molecules, 2012
Chlorination with equimolar POCl3 can be efficiently achieved not only for hydroxypyrimidines, but also for many other substrates such as 2-hydroxy-pyridines, -quinoxalines, or even -amides.
Zhihua Sun, Yongjia Shen, Ye Xiang, Han Wang, Kun Wen, Le Wang, Xiaocheng Xu   +6 more
doaj   +1 more source

Computer-guided design of novel nitrogen-based heterocyclic sphingosine-1-phosphate (S1P) activators as osteoanabolic agents

EXCLI Journal : Experimental and Clinical Sciences
Osteoanabolic agents, or drugs that promote bone formation, have gained considerable attention for osteoporosis management due to their curative and preventive potentials.
Rattanawan Tangporncharoen, Chuleeporn Phanus-Umporn, Supaluk Prachayasittikul, Chanin Nantasenamat, Veda Prachayasittikul, Aungkura Supokawej   +5 more
doaj   +1 more source