Results 51 to 60 of about 4,994 (242)

Controlling the Assembly of Ureido‐Pyrimidinone Supramolecular Monomers by Tuning the Hydrophilic‐Hydrophobic Balance

open access: yesJournal of Polymer Science, Volume 64, Issue 3, Page 682-690, 1 February 2026.
In this study, the self‐assembly behavior of water‐compatible UPy‐based supramolecular monomers with varying hydrophilic‐hydrophobic balances is systematically investigated. Experimental and computational analyses reveal that the molecular monomer design is pivotal in steering the self‐assembly properties, highlighting the role of alkyl‐urea spacers in
Riccardo Bellan   +6 more
wiley   +1 more source

Synthesis, anticancer activity and molecular docking of new quinolines, quinazolines and 1,2,4-triazoles with pyrido[2,3-d] pyrimidines

open access: yesHeliyon
Recently, heterocyclic compounds such as pyrido [2,3-d] pyrimidinones, 1,2,4-triazolopyrimidines, pyrimidoquinazolines, and quinoline derivatives have gained attention from researchers due to their pharmacological and biological activities. To synthesize
Ameen Ali Abu-Hashem   +2 more
doaj   +1 more source

Electrochemical Intramolecular Aminobromination of Alkenes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
A versatile electrochemical method for the intramolecular aminobromination of alkenes has been developed. The method provides access to five‐, six‐, and seven‐membered heterocycles by exploiting tetrabutylammonium bromide as an electrolyte and bromine source.
Sara Colombo   +9 more
wiley   +1 more source

Crystallization Modulation and Defect Passivation of Tin‐Based Perovskite Light‐Emitting Diodes Avoiding DMSO

open access: yesAdvanced Optical Materials, Volume 14, Issue 3, 19 January 2026.
Tin‐based perovskites offer a lead‐free alternative for perovskite light‐emitting diodes (PeLEDs) but suffer from poor performance due to uncontrolled crystallization and Sn(II) oxidation. Here, NH4SCN is introduced into a DMSO‐free precursor to regulate crystallization, suppress Sn(II) oxidation, and reduce defects, enabling pure‐red PeLEDs with an ...
Shun Tian   +13 more
wiley   +1 more source

Sex-associated differences in baseline urinary metabolites of healthy adults. [PDF]

open access: yes, 2018
The biological basis for gender variability among disease states is not well established. There have been many prior efforts attempting to identify the unique urine metabolomic profiles associated with specific diseases.
Anger, Jennifer T   +6 more
core   +1 more source

Comparative Computational Studies of 3,4-Dihydro-2,6-diaryl-4-oxo-pyrimidine-5-carbonitrile Derivatives as Potential Antinociceptive Agents

open access: yesMolecules, 2012
In this study, the antinociceptive properties of 3,4-dihydro-2,6-diaryl-4-oxo-pyrimidine-5-carbonitrile derivatives 5a–i at doses of 25 and 50 mg/kg were evaluated in mice, using the abdominal constriction test.
Francisco J. B. Mendonça Junior   +8 more
doaj   +1 more source

Cross‐Linked Acrylate Binder for High‐Rate Graphite Anodes

open access: yesBattery Energy, Volume 5, Issue 1, January 2026.
A commercially available, cross‐linked acrylate binder (Carbopol® Ultrez10, x‐PAA) with high thickening efficiency is applied here for graphite anodes. Cells incorporating x‐PAA anodes outperform CMC reference under fast‐charging conditions (up to 5C) presumably since x‐PAA does not adsorb on graphite, thus enabling more effective Li+ insertion and ...
Katarzyna Hofmann   +2 more
wiley   +1 more source

ChemInform Abstract: Microwave‐Assisted, Mild, Facile, and Rapid One‐Pot Three‐Component Synthesis of Some Novel Pyrano[2,3‐d]pyrimidine‐2,4,7‐triones. [PDF]

open access: yes, 2012
Novel pyrano[2,3-d]pyrimidine-2,4,7-triones were synthesized in 90–97% yield via a three-component reaction of an aromatic aldehyde, Meldrums acid, and barbituric acid in the presence of 10 mol % K2CO3 under microwave irradiation.
Pasha, M.A., Sadeq Hamood Saleh Azzam, .
core   +2 more sources

Mesoporous molecular sieve MCM-41 catalyzed one-pot synthesis of 3,4-dihydro-2(1H)-pyrimidinones and –thiones under solvent-free conditions

open access: yesBulletin of the Chemical Society of Ethiopia, 2011
An efficient synthesis of 3,4-dihydro-2(1H)-pyrimidinones and -thiones using MCM-41 as the catalyst from an aldehyde, β-keto ester, and urea or thiourea under solvent-free conditions is described.
Rahim Hekmatshoar   +3 more
doaj  

Mussel‐Inspired Molecular Strategies for Fabricating Functional Materials With Underwater Adhesion and Self‐Healing Properties

open access: yesAdvanced Materials, Volume 37, Issue 51, December 23, 2025.
This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley   +1 more source

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