Results 81 to 90 of about 3,255,679 (244)

Zeolite and molecular sieve synthesis

, 1992
Zeolite and molecular sieve syntheses are reviewed. The synthesis of aluminum-rich zeolites, high-silica zeolites, and phosphate-based molecular sieves are evaluated. Unresolved mechanistic issues are outlined and areas for exploration suggested.
Davis, Mark E., Lobo, Raul F.
core  

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

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

FEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez, Diana Ascencio, Miguel Vallebueno‐Estrada, Eduardo González‐Orozco, Christian Eduardo Martínez‐Guerrero, Rafael Montiel, Alexander DeLuna   +6 more
wiley   +1 more source

Why are carbon molecular sieves interesting?

Journal of the Brazilian Chemical Society, 2006
This paper describes the production methods and the prospective uses of carbon molecular sieves. The main route to these materials is replication synthesis, where a silica or aluminosilicate molecular sieve is used as template to grow the carbonaceous ...
Oliveira Erica C. de, Pires Cléo T. G. V. M. T., Pastore Heloise O.   +2 more
doaj  

Synthesis of Silicoaluminophosphate Molecular Sieve by Fly Ash

Kuangchan zonghe liyong
The fly ash from the coal-fired power plant was activated by atmospheric pressure and low temperature sub-molten salt method. The silicon and aluminum species with high stability and low chemical activity in fly ash were transformed into amorphous ...
Zhiping CHEN, Xinyue LI, Li LIU, Wenjie ZHAO, Shihao LYU, Wenwu ZHOU, Xinfu HE, Anning ZHOU   +7 more
doaj   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Oriented Zeolitic Imidazolate Framework-8 Membrane with Sharp H(2) C(3)H(8) Molecular Sieve Separation

, 2011
Oriented Zeolitic Imidazolate Framework-8 Membrane with Sharp H(2)/C(3)H(8) Molecular Sieve ...
ArminFeldhoff, HelgeBux, JuergenCaro, JanoschCravillon, 李砚硕, MichaelWiebcke   +5 more
core  

Degradação de corantes reativos por processo foto-fenton envolvendo o uso de peneira molecular 4A modificada com Fe3+ Degradation of reactive dyes by photo-fenton process using Fe3+ immobilized in molecular sieve 4A

Química Nova, 2010
In this work the preparation and characterization of a supported catalyst intended for degradation of reactive dyes by Fenton-like processes is described. The photocatalyst was prepared by immobilization of Fe3+ into the molecular sieve (4A type) surface
Franciély Ignachewski, Sérgio Toshio Fujiwara, Luiz Fernando Cótica, Livia Melo Carneiro, Elias Tauchert, Patricio Peralta-Zamora   +5 more
doaj   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

Properties of the Sieve Bootstrap for Fractionally Integrated and Non-Invertible Processes [PDF]

In this paper we will investigate the consequences of applying the sieve bootstrap under regularity conditions that are sufficiently general to encompass both fractionally integrated and non-invertible processes.
D. S. Poskitt
core