Results 31 to 40 of about 72,827 (307)

On the regioselective molecular sieves-promoted oxidative three-component synthesis of fused-benzimidazoles from $\beta $-ketoesters

Comptes Rendus. Chimie, 2022
The regioselectivity of molecular sieves-promoted oxidative three-component reaction between $\beta $-ketoesters, aromatic o-diamines and acrolein, leading to pyrido[1,2-a]benzimidazoles, has been investigated by a combination of experimental and ...
Martin, Anthony, Cheshmedzhieva, Diana, Palermo, Valeria, Liéby-Muller, Frédéric, Romanelli, Gustavo P., Gaudel-Siri, Anouk, Coquerel, Yoann, Constantieux, Thierry, Rodriguez, Jean   +8 more
doaj   +1 more source

Synthesis of zeolite molecular sieve from coal gangue and its performance on CO2 capture

Meitan xuebao
Coal gangue, a by-product of coal mining, is accumulating rapidly and As a by-product of coal mining, the amount of coal gangue is increasing in stock, which poses a serious threat to the environment.
Cui QUAN, Fudong WANG, Aijun GUO, Tianhua YANG, Rundong LI, Zimou TANG, Ningbo GAO   +6 more
doaj   +1 more source

Adsorção de CO2 em peneiras moleculares micro e mesoporosas

Química Nova, 2014
Microporous molecular sieves of type Y, Beta, ZSM-5, ZSM-12 and ZSM-35, and mesoporous molecular sieves of type MCM-41 and MCM-48, and these sieves modified with triethanolamine and ethylenediamine were obtained and characterized by XRD, FTIR, TGA and ...
Thiago G. Oliveira, Sanny W. M. Machado, Silvia C. G. Santos, Marcelo J. B. Souza, Anne M. Garrido Pedrosa   +4 more
doaj   +1 more source

Enhanced cytotoxicity of silver complexes bearing bidentate N-heterocyclic carbene ligands [PDF]

, 2012
A diverse library of cationic silver complexes bearing bis(N-heterocyclic carbene) ligands have been prepared which exhibit cytotoxicity comparable to cisplatin against the adenocarcinomas MCF7 and DLD1.
Baker, Benjamin D. Crossley, Charlotte E. Willans, Chen, Corberan, Diana C. F. Monteiro, Dragutan, Hermann, Hickey, Hindi, Jake Fielden, Kascatan-Nebioglu, Klasen, Lin, Magill, Marion, Medvetz, Melaiye, Meres, Mosmann, Patil, Patil, Patil, Patil, Patil, Rai, Ray, Roger M. Phillips, Roland, Siciliano, Teyssot, Teyssot, Willans   +32 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Copper modified carbon molecular sieves for selective oxygen removal [PDF]

, 1992
Carbon molecular sieves modified by the incorporation of finely divided elemental copper useful for the selective sorption of oxygen at elevated temperatures. The carbon molecular sieves can be regenerated by reduction with hydrogen.
Seshan, Panchalam K., Sharma, Pramod K.
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

One-Pot Strategies for Lithium Recovery from Beta-Spodumene and LTA-Type Zeolite Synthesis

Crystals
This study presents a groundbreaking method for extracting lithium from beta-spodumene while simultaneously achieving the sustainable synthesis of LTA-type zeolite, designated as LPM-15, without relying on organic solvents or calcination.
Leonardo Leandro dos Santos, Rubens Maribondo do Nascimento, Sibele Berenice Castellã Pergher   +2 more
doaj   +1 more source

Molecular sieves control contamination and and insulate in thermal regenerators - A concept [PDF]

, 1970
Zeolitic molecular sieves prolong the lives of cryogenic engines by preventing contamination of the thermal regenerators on the cold ends of closed-cycle engines. Sieves also serve as thermal insulators by preventing conduction of heat along regenerators
Gasser, M. G.
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source