Results 31 to 40 of about 1,925 (186)

Iron‐modified natural sand as a heterogeneous Fenton catalyst for methylene blue and textile wastewater treatment

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The continuous discharge of organic dyes into freshwater poses long‐term environmental risks. Heterogeneous Fenton‐like processes using iron (Fe)‐modified silica (SiO2) supports are promising for dye removal; however, catalysts derived from natural sand and operating under near‐neutral conditions remain relatively underexplored ...
Hajer Aloulou   +6 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Synthesis of tert-butylcyclopentane-fused 1,3-oxazines and 1,3-thiazines

open access: yes, 1994
From 2-hydroxymethyl-4-tert-butyl-1-cyclopentylamines (6) and (8), by different ring-closure methods, a number of tert-butylcyclopentane-fused 1,3-oxazines and 1,3-thiazines were ...
Fülöp Ferenc   +3 more
core   +1 more source

Potentiation effects of the positive allosteric modulator PTC‐174 on NMDA receptors in neonatal male rat substantia nigra dopaminergic neurons

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 21, Page 6481-6500, November 2026.
Abstract Background and Purpose Positive allosteric modulators bind to secondary binding sites on the receptor and alter receptor conformation and activation, changing agonist potency and efficacy. PTC‐174 is a novel NMDA receptor positive allosteric modulator that particularly enhances activity of receptors containing GluN2C or GluN2D subunits.
Bangyuan Liu, Alasdair J. Gibb
wiley   +1 more source

Modular One‐Pot Access to π‐Expanded Tetrakis(Phenothiazinyl)‐Silanes With Broadly Tunable Redox and Emission Properties

open access: yesChemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
A library of 21 tetrakis(phenothiazinyl)‐substituted silanes with broadly variable substituent decoration, which are fully reversible multistage redox systems with intense tunable emission from deep blue to yellow–green (441–533 nm), was rapidly synthesized by bromine–lithium exchange/borylation–Suzuki coupling of tetrakis(4‐bromophenyl)silane or by ...
Thomas P. M. Merke   +4 more
wiley   +1 more source

Diethylene Glycol‐Linked Ring‐Fused Bis‐Azoles: Target‐Oriented Synthesis, In Silico Screening, and Antitumor Activity

open access: yesChemMedChem, Volume 21, Issue 19, 14 October 2026.
A series of diethylene glycol‐linked cyclic derivatives with diversity in the heterocyclic motif have been synthesized and screened for antitumor activity. Two bis‐thiazolo[3,2‐a]pyrimidinone derivatives displayed moderate cytotoxicity, high selectivity against hepatocellular carcinoma cells, promising VEGFR2, and remarkable FGFR2 inhibitory activities
Sami A. Al‐Hussain   +6 more
wiley   +1 more source

Novel syntheses of 4-alkyl-2(5H)-thiophenones and 8-phenylimino-1,2,4-triazolo[5,1-c]- 1,4-thiazines

open access: yes, 1998
1,2,4-Triazole stabilized allene anions are intermediates for the synthesis of 4-alkyl-2(5H)-thiophenones and 8-phenylimino-1,2,4-triazolo[5,1-c]-1,4-thiazines.
Daming Feng   +4 more
core   +1 more source

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

open access: yesAngewandte Chemie, Volume 138, Issue 30, 20 July 2026.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner   +6 more
wiley   +2 more sources

Microfluidic Intracytoplasmic Sperm Injection (MICSI): A Novel Platform for Sperm Isolation, Selection, and Injection Into Oocytes

open access: yesAndrology, Volume 14, Issue 7, Page 2252-2261, October 2026.
ABSTRACT Background Infertility is a pressing global health concern, affecting one in six couples worldwide. The failure rate for assisted reproductive technologies (ART) cycles remains at approximately 78%, with limited improvements often attributed to a lack of technological innovation.
Mehran Dabiri   +3 more
wiley   +1 more source

Co‐Culture of Mammalian Cells and Photosynthetic Microorganisms for Oxygen Supply in Engineered Tissues

open access: yesCell Proliferation, Volume 59, Issue 10, October 2026.
Continuous 28‐day light exposure alters behaviours of articular cartilage progenitor cells (ACPCs) and mesenchymal stromal cells (MSCs). Co‐culture with Leptolyngbya and Synechococcus does not adversely affect the chondrogenic capacity of ACPCs over a 28‐day period, in contrast to co‐culture with Chlorella.
Meng Wang   +10 more
wiley   +1 more source

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