Results 111 to 120 of about 153,743 (299)

Cu(I) Is a Game Changer in the Arrest of Cu(Aβ)‐Induced ROS Production in the Presence of Competing Zn(II) Ions

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT ROS production due to Cu(amyloid‐β) redox cycling is proposed to contribute to the oxidative stress observed in Alzheimer's disease brains. We previously reported on a nitrogen and sulfur‐containing ligand, L, able to arrest Cu(Aβ)‐induced ROS production [Chem. Eur. J. 2023, 29,].
Marielle Drommi   +4 more
wiley   +1 more source

Late‐Stage Phenylation From [13C6] and [2H5]Benzene: A Versatile Tool for Stable Isotope Labeled MS Standards

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT We explored aryl thianthrenation as a tool for directly incorporating multiple isotopes into molecular scaffolds starting from full isotopically labeled benzene. Stable isotope‐labeled (SIL) molecules are indispensable tools for investigating chemical and biological mechanisms and quantifying metabolites.
Alexandre Labiche   +7 more
wiley   +1 more source

Novel Porous Polymorphs of Zinc Cyanide with Rich Thermal and Mechanical Behavior

open access: yes, 2015
We investigate the feasibility of four-connected nets as hypothetical zinc cyanide polymorphs, as well as their thermal and mechanical properties, through quantum chemical calculations and molecular dynamics simulations.
Boutin, Anne   +2 more
core   +3 more sources

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

open access: yesChemistry – A European Journal, EarlyView.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado   +16 more
wiley   +1 more source

Synthesis and Evaluation of the First Generation of Glycosylated Nucleoside Analogues as Potential Inhibitors of the Base J Metabolism in Kinetoplastid Parasites

open access: yesChemistry – A European Journal, EarlyView.
Novel analogues of the kinetoplastid‐specific DNA base J unlock a new way to target parasite epigenetic regulation. Some compounds selectively inhibit Leishmania and Trypanosoma species without harming human cells, revealing a promising route toward innovative antiparasitic therapies.
Océane Monfret   +9 more
wiley   +1 more source

PROMOVAREA INSTRUIRII PRIN CERCETARE ÎN CURRICULUM LA CHIMIE ÎN BAZA CONCEPTULUI STEAM

open access: yesStudia Universitatis Moldaviae: Stiinte ale Educatiei
Studiul include analiza Curriculum-ului modernizat în 2019 la Chimie. Sunt anlizate elementele cercetării în curriculum și ponderea lor în raport cu numărul total de ore per clasă și ciclu de studii.
USM ADMIN
doaj  

Fluorescent Polyethers Incorporating Perylene Diimide Derivatives: Investigating a Strategy of Limiting Aggregation

open access: yesMacromolecular Materials and Engineering, EarlyView.
This work focuses on the use of perylene diimide (PDI) in the main polymeric chain of poly(arylene ether)s. It attempts to unlock the emission of PDI by randomly distributing it along the main chain to avoid quenching. This is a strategy that can be incorporated toward developing materials for the active layer of Polymeric Light Emitting Diodes (PLEDs).
Konstantinos C. Andrikopoulos   +2 more
wiley   +1 more source

D’une science à l’autre : Chimie et manuscrits médiévaux. Étapes d’une évolution

open access: yesBulletin du Centre d’Études Médiévales d’Auxerre, 2006
Claude Coupry
doaj   +1 more source

From Molecule to Material: How Support Changes Heterobimetallic Catalysts in Lactide Polymerization

open access: yesMacromolecular Rapid Communications, EarlyView.
Silica‐supported heterobimetallic alkoxide complexes were developed as catalysts for lactide ring‐opening polymerization. Grafting iron‐based ate complexes onto SiO2‐700 produced well‐defined active sites, enabling controlled polymerization with predictable molar masses, narrow dispersities, and recyclability.
Fan Yang   +6 more
wiley   +1 more source

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