Results 91 to 100 of about 9,296,901 (229)

Incorporation of an Extended Electron‐Deficient Central Block Into Small‐Molecule Acceptors Toward Enhanced‐Performance Organic Solar Cells

open access: yesAggregate, Volume 7, Issue 6, June 2026.
Two novel extended electron‐deficient central cores (Tz‐Qx, Dz‐Qx) with F/Cl‐substituted terminal groups synergistically optimize small molecule acceptors. Tz‐Qx‐4F outperforms Dz‐Qx‐based counterparts, achieving 19.50% PCE (29.3 mA cm−2 JSC) when blended with D18, thus providing valuable insights for designing high‐performance organic solar cell ...
Lan Xie   +10 more
wiley   +1 more source

Highly Efficient Short‐Wavelength Infrared OLEDs at 1000 nm via Phosphorescent‐Host Engineering

open access: yesAggregate, Volume 7, Issue 6, June 2026.
A phosphorescent‐host strategy enables efficient SWIR OLEDs by harvesting both singlet and triplet excitons. The devices reach a record EQE of 2.64% at 920 nm, efficient emission at 1000 nm is achieved with an external quantum efficiency (EQE) exceeding 0.22% and a radiance of 1805 mW sr−1 m−2, establishing a general host‐engineering approach for SWIR ...
Zi‐Qi Feng   +5 more
wiley   +1 more source

A Selective Phenyl Azo Acetate Substrate for Enhanced Carbonic Anhydrase Functional Analysis

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT Carbon dioxide (CO2) sequestration is a key strategy for mitigating climate change, and biocatalytic approaches offer sustainable, cost‐effective alternatives to chemical and physical methods. Carbonic anhydrases (CAs) efficiently catalyse the reversible hydration of CO2 to bicarbonate, yet their large‐scale application is constrained by ...
Justinas Babinskas, Inga Matijošytė
wiley   +1 more source

Estudo da síntese espectros I.V. e atividade farmacobiológica de 1-acil-4-aril-tiosemicarbazidas e triazóis 3,4,5-trissubstituídos [PDF]

open access: yes, 1987
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Curso de Pós-Graduação em Físico ...
Peres, Marize Terezinha Lopes Pereira
core  

Rh(I)-Catalyzed Denitrogenative Transformations of 1,2,3-Thiadiazoles: Ligand-Controlled Product Selectivity and the Structure of the Key Organorhodium Intermediate Revealed

open access: yes, 2022
Ligand-controlled rhodium­(I)-catalyzed denitrogenative transformations of a range of 4-vinyl-1,2,3-thiadiazoles possessing electron-donating substituents at the C5-position of the heterocycle have been demonstrated.
Barbara A. Messerle (9047)   +5 more
core   +1 more source

Rational Design and Development of Organic Afterglow Nanoparticles for Image‐Guided Interventions

open access: yesSmall Methods, Volume 10, Issue 12, 23 June 2026.
This review outlines the rational design, synthesis, and standardized characterization of organic afterglow nanoparticles for biomedical imaging and therapy. Mechanistic insights into chemically initiated electron exchange luminescence and reactive oxygen species‐mediated processes are connected to molecular engineering and nanoparticle fabrication ...
Asma Harun   +6 more
wiley   +1 more source

Recent Advances in Photoelectrochemical Water Splitting Enabled by Covalent Organic Frameworks

open access: yesSmall Structures, Volume 7, Issue 6, June 2026.
This review highlights the potential of 2D covalent organic frameworks (COFs) as tunable and porous photoactive catalysts for solar‐driven water splitting. It discusses COF design principles and emerging photoelectrocatalytic performance, with special emphasis on film fabrication and deposition strategies critical for integrating COFs into efficient ...
Roman Guntermann   +3 more
wiley   +1 more source

Synthesis of 2-(4-bromobenzoylamino)-5- 'aryloxymethyl-1,3 ,4-thiadiazoles

open access: yes, 2001
422-425Reactions of 4-bromobenzoyl chloride with ammonium thiocyanate first, then with aryloxyacetic acid hydrazides under phase transfer catalysis give 1-aryloxyacetyl-4-(4- bromobenzoyl)-thiosemicarbazides 3a-k.
Li, Zheng   +4 more
core  

DESIGN, SYNTHESIS AND ANTIFUNGAL EVALUATION OF NOVEL SUBSTITUTED 1, 3, 4-OXADIAZOLES, AND 1, 3, 4-THIADIAZOLES [PDF]

open access: yes, 2015
Objective: The purpose of this research is to evaluate the antifungal activity of synthesized conjugates of thiophene with 1, 3, 4-oxadiazoles and 1, 3, 4-thiadiazoles using in vitro methods.Methods: The series of (IVa-e) and (Va-e) compounds were ...
Mishra, Pradeep, Upadhyay, Prabhat K
core  

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