Results 161 to 170 of about 72,846 (301)

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

On-Surface Synthesis of B₃N₃-Substituted Two-Dimensional Covalent Organic Frameworks with Distinct Pore Sizes and Kagome Band Structures. [PDF]

Small
Sena Tömekçe B, Khodadadi AN, Caputo L, Piquero-Zulaica I, Corso M, Schiller F, Ortega JE, Charlier JC, Vaccaro L, Auwärter W.   +9 more
europepmc   +1 more source

ELECTRONIC SPECTRA OF BIPHENYL.

, 1967
Author Institution: Laboratory for Research on Molecular Structure, University of PennsylvaniaThe polarized absorption and emission spectra of biphenyl have been investigated at $4.2^{\circ}K$ in various media.
McAlpine, Robert D.
core  

Highly efficient blue crystalline organic light‐emitting diodes enabled by a hot exciton sensitizer PyPO

FlexMat, EarlyView.
Two different sensitization structures (hot exciton sensitizer type and exciton nanoaggregate type) were integrated into crystalline host matrix. The resulting crystalline organic light‐emitting diodes exhibit low Joule heat loss ratio and high photon output.
Hao Hu, Bo Yu, Ping Lu, Feng Zhu, Donghang Yan   +4 more
wiley   +1 more source

Intriguing three-component four-layer stacking nanostructures formed by the self-assembly of main-chain liquid-crystalline polyurethane elastomers, as analyzed by two-dimensional small-angle X-ray scattering. [PDF]

RSC Adv
Hasegawa Y, Noda T, Iseki S, Endo T, Sugino Y, Sakurai S.   +5 more
europepmc   +1 more source

Food Contamination and Safety in Nigeria: A Systematic Synthesis of Heavy Metals, Microbial Pathogens, and Health Risk Metrics

Food Safety and Health, EarlyView.
This is an infographic driver of food contaminants and health effects. ABSTRACT Food safety remains a critical challenge in Nigeria due to rapid urbanization and weak regulatory enforcement. This systematic review synthesizes empirical evidence from 2015 to 2025 to characterize food contaminant profiles and associated human health risks in Nigeria ...
Cecilia Nwadiuto Obasi, Naomi A. Mogborukor, Baridoo Donatus Dooka, Polycarp Dauda Madaki, Chiara Frazzoli, Mohamed Haddad, Orish Ebere Orisakwe   +6 more
wiley   +1 more source

Using xenon difluoride and 2 Li[Al{OC(CF₃)₃}₄] as an oxidant: from organoxenonium intermediates to (fluoro-)biphenyl radical cations. [PDF]

Chem Sci
Kloiber K, Heizmann T, Lacombe B, Thielert P, Sellin M, Schwandt T, Richert S, Weber S, Krossing I.   +8 more
europepmc   +1 more source

The relationship between cellular protein content and selenium accumulation in freshwater microalgae

Integrated Environmental Assessment and Management, EarlyView.
Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie, Melanie Gallant, James R. Elphick, Christopher Kennedy   +3 more
wiley   +1 more source

Development of Biphenyl-Substituted Uracil-Based Hydroxamic Acids (UBHAs) as Potent HDAC Inhibitors with Pro-Apoptotic Activity in Leukemia and Prostate Cancer Cells. [PDF]

J Med Chem
Fiorentino F, Bontempi G, Michetti F, Pecci V, Fabbrizi E, Passeri D, Corsetti L, Farini V, Casano F, Gioiello A, Di Sotto A, Pellicciari R, Bufalo DD, Trisciuoglio D, Nanni S, Strippoli R, Mai A, Rotili D.   +17 more
europepmc   +1 more source

Constructing better electrode–electrolyte interphases in sodium‐ion battery cathodes

InfoMat, EarlyView.
Recent work on the engineering of electrode–electrolyte interphases (EEIs) in sodium‐ion batteries (SIBs) cathode materials has been summarized. The classifications and corresponding problems are presented, followed by electrolyte, auxiliary, and electrode engineering methods.
Junpeng Xie, Zheng Hu, Liang Ma, Jinliang Li, Wenjie Mai   +4 more
wiley   +1 more source