Results 41 to 50 of about 629,173 (167)

High‐Resolution Elemental Analysis of Neuromelanin‐Containing Organelles in Human Locus Coeruleus

open access: yesJournal of Neurochemistry, Volume 170, Issue 7, July 2026.
Created in https://BioRender.com. Neuromelanin (NM), a dark metal‐chelating pigment in the brain, has long been of interest for its potential roles in aging and Parkinson's disease. In this study, we explored NM‐containing neurons (NM neurons) in the human locus coeruleus at unprecedented resolution.
Zahraa Berro   +11 more
wiley   +1 more source

One‐Step Fabricated Green Tubular Ceramic Membrane for Chromium (VI) Removal With High Permeability and Low Production Cost

open access: yesChemistrySelect, Volume 11, Issue 23, 18 June 2026.
ABSTRACT Large volumes of wastewater are released into the environment without proper treatment. Water pollution is linked to over 80% of diseases and deaths each year. Contamination by heavy metal ions arises from both natural sources and human activities.
Mhamed A. Aburawi   +6 more
wiley   +1 more source

Polycopié de cours : methodes spectroscopiques d’analyse : Cours destiné aux étudiants de 3ème année « Licence Chimie Analytique »

open access: yes, 2023
Ce document pédagogique a été spécialement conçu pour les étudiants de troisième année de licence ainsi que pour les étudiants de master M1 dans la spécialité de la chimie analytique.
Kheffache, Djaffar
core  

On the Attack by Alcohol on One Carbon-Carbon Double Bond of Dichloro(Norbornadiene)Palladium(II)

open access: yesCHIMIA, 1975
The kinetics of nucleophilic attack by alcohol on one double bond of PdCl2(nbd) (nbd = 2,5-norbornadiene) has been studied by UV spectrophotometry.
Raymond Roulet   +3 more
doaj   +1 more source

Addressing Bottlenecks to Achieve High‐Energy Sodium‐Ion Cells Using Tin Anodes

open access: yesAdvanced Energy Materials, Volume 16, Issue 17, 6 May 2026.
The challenges in coupling high voltage cathode with Sn‐alloying anode or in anode‐free cell, using glyme based electrolytes to realize high energy Na‐ion cells are reported. Surface protection strategy such as SnO coating on Sn or trapping the parasitic species from poisoning the anode, helps improving the cyclability, with ∼100% capacity retention ...
Parth Desai   +11 more
wiley   +1 more source

Bibliographie analytique de l’Afrique antique XLIX (2015)

open access: yes, 2020
La Bibliographie analytique de l'Afrique antique fait suite aux bibliographies parues sous les signatures de J. Desanges et S. Lancel, d’abord dans le Bulletin d’Archéologie Algérienne (I, 1962-1965, à III, 1968, pour les publications des années 1961 à ...

core   +2 more sources

Adsorption of Iodine and Halogen-containing Organic Molecules on Gold Studied by Photo-electron Spectra

open access: yesCHIMIA, 1975
The relative proportion of undissociated organic molecules and of separate iodine adsorbed on gold surfaces is studied, using photoelectron signal intensities and chemical shifts.
Lucette Balsenc   +2 more
doaj   +1 more source

Photogeneration of Hydrogen in Water via Self‐Assembly‐Induced Colloidal Covalent Organic Framework Particles

open access: yesSmall Science, Volume 6, Issue 3, March 2026.
A surfactant‐free strategy using a functional Poly(DiMethylAminoEthylMethAcrylate) polybase enables stable colloidal imine‐linked COFs formation via self‐assembly‐induced process. A dual effect is demonstrated with the control in size and stabilization in colloidal state of the COFs in situ synthesized.
Axelle Larrieu   +3 more
wiley   +1 more source

Recent Advances in Metal‐Based Catalysts for Nitrile Hydration to Amides: Mechanistic Aspects

open access: yesThe Chemical Record, Volume 26, Issue 1, January 10, 2026.
Amide vital functional group plays a key role in the composition of amide‐containing compounds, including peptides, proteins, and amino acids. Demand for innovative amide derivatives grows due to their crucial role in drug development. A cost‐effective method uses metal‐catalyzed hydration of nitriles to amides.
Fatima‐Ezzahraa Essebbar   +3 more
wiley   +1 more source

Mn2+ Bispidine Complexes as Potential Magnetic Resonance Imaging Agents : Noncoordinating Peripheral Functional Groups Affect Structural, Kinetic, and Relaxation Properties

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
In the family of Mn2+ complexes formed with pentadentate bispidine chelates, functional groups that do not interfere with metal coordination can play a significant role in enhancing kinetic inertness and proton relaxation efficacy. Mn2+ bispidine complexes combine unprecedented kinetic inertness with high relaxivity and are under scrutiny as potential ...
Maryame Sy   +5 more
wiley   +1 more source

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