Results 51 to 60 of about 14,380 (267)

Investigation of TNBC in vitro Antiproliferative Effects of Versatile Pirrolo[1,2-a]quinoxaline Compounds [PDF]

, 2019
he triple-negative breast cancer (TNBC) is characterized by a more aggressive nature and poorer prognosis, nowadays none pharmaceutical approach is still available.
Erika Cione, Francesca Aiello, Gabriele Carullo, Luisa Amendola, Maria Cristina Caroleo, Mariarita Perri, Sarah Mazzotta   +6 more
core   +4 more sources

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

Advanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Switching Enantioselectivity in Phenylalanine Ammonia Lyase for the Synthesis of Electron‐Deficient Aromatic d‐Amino Acids

Angewandte Chemie, EarlyView.
Phenylalanine ammonia lyases (PALs) were engineered to switch enantioselectivity, enabling hydroamination for the direct synthesis of electron‐deficient aromatic d‐amino acids (d‐AA). Structure‐guided engineering provided PAL variants with broad substrate scope, high activity, and excellent d‐selectivity, broadening the utility of PALs in asymmetric ...
Ivan Buslov, Sarah Desmons, Weijin Wang, Laura Elena Massaad, Xile Hu   +4 more
wiley   +2 more sources

Synthesis, cytotoxicity and antiviral evaluation of new series of imidazo[4,5-g]quinoline and pyrido[2,3-g]quinoxalinone derivatives [PDF]

, 2015
Linear aromatic N-tricyclic compounds with promising antiviral activity and minimal cytotoxicity were prepared and analyzed in the last years. Specifically, the pyrido[2,3-g]quinoxalinone nucleus was found endowed with high potency against several ...
Briguglio, Irene, Carta, Antonio, Corona, Paola, Farci, Pamela, Fermeglia, Maurizio, Gavini, Elisabetta, Giliberti, Gabriele, Giunchedi, Paolo, Ibba, Cristina, La Colla, Paolo, Laurini, Erik, Loddo, Roberta, Piras, Sandra, Pricl, Sabrina, Sanna, Giuseppina   +14 more
core   +1 more source

Materials and Device Engineering Perspective: Recent Advances in Organic Photovoltaics

Advanced Materials, EarlyView.
This review article provides a comprehensive overview of recent advances in organic photovoltaics (OPVs), covering key aspects such as material development, morphology control, stability challenges, and emerging applications—including semitransparent OPVs.
Ying Zhang, Hao Xia, Jiangsheng Yu, Yang Yang, Gang Li   +4 more
wiley   +1 more source

Optical Force Monitoring in Polymeric Materials with a Coumarin‐Based Mechanophore

Angewandte Chemie, EarlyView.
Coumarin dyes are reacted with acrylates to form a mechanophore via an accessible two‐step synthesis that exhibits exclusive responsivity to force. Mechanical deformation of polymeric materials functionalized with the mechanophore activates blue fluorescence visible to the naked eye, enabling the optical detection of force‐induced molecular damage in ...
Yang Li, Jess M. Clough
wiley   +2 more sources

Green oxidations: Titanium dioxide induced tandem oxidation coupling reactions

Beilstein Journal of Organic Chemistry, 2009
The application of titanium dioxide as an oxidant in tandem oxidation type processes is described. Under microwave irradiation, quinoxalines have been synthesized in good yields from the corresponding α-hydroxyketones.
Vineet Jeena, Ross S. Robinson
doaj   +1 more source

New quinoxaline derivatives as potential MT₁ and MT₂ receptor ligands. [PDF]

, 2012
Ever since the idea arose that melatonin might promote sleep and resynchronize circadian rhythms, many research groups have centered their efforts on obtaining new melatonin receptor ligands whose pharmacophores include an aliphatic chain of variable ...
Aldana, I. (Ignacio), Ancizu, S. (Saioa), Caignard, D.H. (Daniel-Henry), Castrillo, N. (Nerea), Delagrange, P. (Philippe), Galiano, S. (Silvia), Monge, A. (Antonio), Pérez-Silanes, S. (Silvia)   +7 more
core  

Studies in Benzimidazo Thiazolo Quinoxalines and Benzimidazo Thiazino Quinoxalines

, 1970
Benzimidazo (2', 1': 2, 3) thiazolo (4, 5-b) quinoxalines and 7H-benzimidazo (1', 2': 4, 5) (1 : 4) thiazino (2, 3-b) quinoxalines have been synthesised by the condensations of 2-mercapto benzimidazoles with 2 : 3-dichloro quinoxalines and 2-(mercaptomethyl) benzimidazole with 2 : 3-dichloro quinoxalines respectively.
Simran Singh, Singh, Chanan, K. S. Narang   +2 more
openaire   +1 more source

Quinoxaline and its Monohydrate [PDF]

Nature, 1946
ALTHOUGH quinoxaline, C8H6N2, was synthesized in 18841,2, and has been mentioned in the literature1–13 several times since that date, it is rather surprising that the existence of quinoxaline monohydrate has not been noticed, the more so since several physico-chemical determinations have been carried out with quinoxaline ; namely, vapour density in ...
openaire   +2 more sources