Results 41 to 50 of about 29,559 (250)

Bay‐functionalized [7]Helicene Bilayer Nanographenes

Advanced Optical Materials, EarlyView.
Bay‐functionalized [7]helical bilayer nanographenes are synthesized via a scalable, modular strategy enabling late‐stage diversification. Tailored methoxy, diketone, and phenazine substitutions precisely tune redox, photophysical, and chiroptical properties, delivering strong electronic circular dichroism and bright circularly polarized luminescence ...
Anmol Thanai, Vikas Sharma, Louis Minion, Hassan Khan, Hadeel Abbas, George F. S. Whitehead, Avantika Hasija, Jessica Wade, Matthew John Fuchter, Ashok Keerthi   +9 more
wiley   +1 more source

Antimicrobial Evaluation and Synthesis of Some Phenylpyrazolo benzothiazolo quinoxaline Derivatives

E-Journal of Chemistry, 2009
2,3-Diphenyl quinoxaline (SI) was fused with 2-amino benzothiazoles (SII) by a methylene bridge, which was then allowed for acetylation. The acetylated product (SIV) was made to react with different aromatic aldehydes to give chalcones (SV1-SV5 ...
CH. Sridevi, K. Balaji, A. Naidu, R. Sudhakaran   +3 more
doaj   +1 more source

Polyoxa- and Polyazamacrocycles Incorporating 6,7-Diaminoquinoxaline Moiety: Synthesis and Application as Tunable Optical pH-Indicators in Aqueous Solution

Molecules, 2023
Synthetic approach to fluorescent polyaza- and polyoxadiazamacrocycles comprising a structural fragment of 6,7-diamino-2,3-diphenylquinoxaline has been elaborated using Pd-catalyzed amination providing target compounds in yields up to 77%.
Igor A. Kurashov, Alisa D. Kharlamova, Anton S. Abel, Alexei D. Averin, Irina P. Beletskaya   +4 more
doaj   +1 more source

Initial Distance‐Dependent Mean Force Drives Synaptic Vesicle Motion Toward Fusion Sites in Stimulated Hippocampal Neurons

Advanced Science, EarlyView.
Synaptic vesicle (SV) motion and exocytosis dynamics in the presynaptic terminals of live neurons are intimately linked to synaptic transmission during neuronal activity. In this work, it is revealed that, during electrical stimulation, SVs located farther from their fusion sites exhibit greater straightness and experience larger mean forces directed ...
Gyunam Park, Ji‐Hyun Kim, Hunki Lee, Chungwon Park, Sidong Chen, Luke Bates, Jaeyoung Sung, Hyokeun Park   +7 more
wiley   +1 more source

Evaluation of Synthetic 2,4-Disubstituted-benzo[g]quinoxaline Derivatives as Potential Anticancer Agents

Pharmaceuticals, 2021
A new series of 2,4-disubstituted benzo[g]quinoxaline molecules have been synthesized, using naphthalene-2,3-diamine and 1,4-dibromonaphthalene-2,3-diamine as the key starting materials. The structures of the new compounds were confirmed by spectral data
Islam Zaki, Sara A. Abu El-ata, Eman Fayad, Ola A. Abu Ali, Ali H. Abu Almaaty, Ahmed S. Saad   +5 more
doaj   +1 more source

Universal Antibody‐Engineered Lipid Nanoparticles Potentiate Chemo‐Immunotherapy Against Triple‐Negative Breast Cancer by Reprogramming Tumor Cell Metabolism

Advanced Science, EarlyView.
A universal ROR1 antibody‐engineered lipid nanoparticle (LNP) is constructed by sequential drug encapsulation and antibody conjugation. The LNP not only enables enhanced chemotherapeutic efficiency by targeting drug delivery and precise localization of deep‐seated tumors through NIR‐II fluorescence imaging, but also remodels immunosuppressive TME ...
Yeneng Dai, Jiaqi Wang, Yu Liu, Guanda Jiao, Yuheng Gu, Yang Liu, Shengyu Fu, Xing Fan, Jialin Li, Ziang Guo, Kam Tong Leung, Lipeng Zhu, Qi Zhao   +12 more
wiley   +1 more source

3-{2-[(3-{(E)-2-[4-(Dimethylamino)phenyl]ethenyl}quinoxalin-2-yl)oxy]ethyl}-1,3-oxazolidin-2-one monohydrate

Acta Crystallographica Section E, 2012
In the title compound, C23H24N4O3·H2O, the 1,3-oxazoline ring is nearly planar [maximum deviation = 0.059 (2) Å] and its mean plane is twisted by 30.12 (8)° with respect to the quinoxaline fused ...
Youssef Ramli, Hafid Zouihri, El Mokhtar Essassi, Seik Weng Ng   +3 more
doaj   +1 more source

Photochromism‐Driven Full Solar Spectrum Absorption for Efficient Photo‐Thermo‐Electric Conversion

Advanced Science, EarlyView.
After electron‐transfer photochromism, a black viologen‐based organic compound shows full solar spectrum absorption (250–2500 nm) and near‐infrared photothermal conversion efficiency (NIR‐PCE) >60%. Integrated with a thermoelectric generator, it outputs 1.17 V under 4 Suns irradiation, enough to drive a small fan via photo‐thermo‐electric conversion ...
Ning‐Ning Zhang, Lin‐Xu Liu, Zhen‐Yu Li, Yong‐Fang Han, Wen‐Wen Zi, Kong‐Gang Qu, Ming‐Sheng Wang, Yong Yan   +7 more
wiley   +1 more source

Solution‐Processed Organic Photovoltaics: Fabrication Advances and Challenges

Advanced Science, EarlyView.
This review highlights recent advances in organic photovoltaic (OPV) device fabrication, emphasizing how material selection, interface engineering, and scalable processing techniques shape device performance. It discusses progress in photoactive and charge transport layers, electrode optimization, and large‐area manufacturing, offering insights into ...
Kerui Liu, Chenyujie Zhu, Yuanyuan Jiang, Feng Liu, Xiaozhang Zhu   +4 more
wiley   +1 more source

[EMIM]AlCl4-ionic liquid catalyzed mechanochemically assisted green approach towards the synthesis of quinoxaline, 6H-indolo[2,3-b]quinoxaline and benzimidazole derivatives

Results in Chemistry
In the presented work, a convenient and effective methodology for the synthesis of quinoxaline, 6H-indolo[2,3-b]quinoxaline and benzimidazole derivatives has been developed.
Shafaque M. Shaikh, Gulafshan M. Ansari, Zobia Z. Karbari, Aditi A. Babre, Vikas V. Borge, Vikas M. Bangade, Damodara N. Kommi, Bhushan B. Popatkar   +7 more
doaj   +1 more source