Results 71 to 80 of about 28,704 (278)

Steric and hydrophobic effects of substituents in extraction of metal complexes with O,O-dialkyldithiophosphoric acids

, 2020
The two-phase stability constants (equilibrium constants) of metal complexes MAn [Mn+ = Ni(II), Zn(II), Cd(II), Pb(II), Tl(I), In(III)] with a series of O,O-dialkyldithiophosphoric acids in the system water-organic solvent) have been determined.
Garifzyanov A., Panfilova I., Toropova V.   +2 more
core  

Extraction of strontium and barium salts by the nitrobenzene solution of dicarbolide in the presence of glymes

, 1985
Extraction of microamounts of Sr2+ and Ba2+ (henceforth M2+) from the aqueous solutions of perchloric acid (0.0125-1.02 mol/l) by means of the nitrobenzene solutions of dicarbolide (0.004-0.05 mol/l of H+{Co(C2B9H11)2}-) was studied in the presence of ...
Emanuel Makrlík, Petr Vaňura
core   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

FEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli, Carlotta Chiesa, Maher Abou Hachem, Ditte Hededam Welner   +3 more
wiley   +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

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

Phycocyanin ultrasound assisted extraction from Spirulina (Arthrospira platensis) using sodium phosphate buffer solvent: Mass transfer modelling and stability test

South African Journal of Chemical Engineering
Microalgae Spirulina (Arthrospira platensis) contains high protein content (55–70 %), consisting of approximately 20 % phycocyanin compounds as a photosynthetic pigment. Phycocyanin has antioxidant and anti-inflammatory properties.
Brilian Ryan Sadewo, Rochmadi, Nugroho Dewayanto, Eko Agus Suyono, Alinda Fitrotun Nisya, Amare Nirwasita Parafianto, Butsaina Masaroh Zulhan, Arief Budiman   +7 more
doaj   +1 more source

Studies on the Sulfur-containing Chelating Agents. XXXIX. Determination of Stability Constants of Some Metal Complexes of N-Phenyl-and N-Ethyl-β-mercaptocinnamamide and Thiodibenzoyl-methane by Solvent Extraction Method

Chemical and Pharmaceutical Bulletin, 1974
Stability constants and extraction constants of some metal complexes of N-phenyl-β-mercaptocinnamamide (I), N-ethyl-β-mercaptocinnamamide (II) and thiodibenzoylmethane (III) were determined by solvent extraction method in chloroform and isoamyl acetate systems.
CHIKUMA, MASAHIKO, YOKOYAMA, AKIRA, TANAKA, HISASHI   +2 more
openaire   +2 more sources

The Extraction of Anionic Beryllium Complexes by Tri-iso-octylamine

, 1962
The extraction of beryllium from aqueous solution by long-chain tertiary amines has been observed in the presence of ligands giving rise to anionic complexes.
D Kairaitis, HJ de Bruin, RB Temple
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Determinação de cádmio, chumbo e cobalto em matrizes aquosas usando micro extração líquido-líquido-sólido com detecção por SS-GF AAS [PDF]

, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.Neste trabalho foram desenvolvidas diversas metodologias de microextração utilizando membranas ...
Carletto, Jeferson Schneider
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