STRUCTURAL ELUCIDATION OF A NEUTRAL WATER-SOLUBLE α-D-GLUCAN FROM THE FUNGUS OF HERICIUM ERINACEUS

2011 ◽  
Vol 35 (6) ◽  
pp. 1680-1685 ◽  
Author(s):  
ANQIANG ZHANG ◽  
YINGLIN DENG ◽  
PEILONG SUN ◽  
XIANGHE MENG ◽  
JINGSONG ZHANG
Keyword(s):  
Structural Elucidation ◽  
Water Soluble ◽  
Hericium Erinaceus ◽  
Neutral Water

Structural analysis of oligomeric fructans from excised leaves of Lolium temulentum

2020 ◽  
Author(s):  
Ian Sims ◽  
CJ Pollock ◽  
R Horgan
Keyword(s):  
Mass Spectrometry ◽  
Structural Analysis ◽  
Higher Plants ◽  
Water Soluble ◽  
Lolium Temulentum ◽  
Neutral Water ◽  
Alditol Acetates ◽  
Partially Methylated

Individual fructan tri-, tetra- and pentasaccharide isomers in neutral, water-soluble extracts from Lolium temulentum were purified and the linkages present in these isomeric oligosaccharides were analysed by combined GC-mass spectrometry of partially methylated alditol acetates. 1-Kestose and neokestose were the most abundant trisaccharides with 6-kestose present in much lower amounts. Analysis of isomers of DP 4 and 5 showed that multiple linkage types were present with structures based on all three trisaccharides. Oligosaccharides based on neokestose but with 2,6 linkages between adjacent fructose residues have not been previously detected in higher plants. © 1992.

Dynamic Core−Shell Structures in Two-State Models of Neutral Water-Soluble Polymers

2007 ◽  
Vol 40 (6) ◽  
pp. 2201-2209 ◽  
Author(s):  
N. Yoshinaga ◽  
D. J. Bicout ◽  
E. I. Kats ◽  
A. Halperin
Keyword(s):  
Water Soluble ◽  
Shell Structures ◽  
Core Shell ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Neutral Water ◽  
State Models

scholarly journals Investigating the reactivity of neutral water-soluble Ru(ii)–PTA carbonyls towards the model imine ligands pyridine and 2,2′-bipyridine

RSC Advances ◽  
2020 ◽  
Vol 10 (45) ◽  
pp. 26717-26727
Author(s):  
Federica Battistin ◽  
Alessio Vidal ◽  
Gabriele Balducci ◽  
Enzo Alessio
Keyword(s):  
Water Soluble ◽  
Neutral Water ◽  
Imine Ligands

The reactivity of selected Ru(ii)-PTA carbonyls with potentially labile ligands (i.e. H2O, dmso and/or Cl) towards the model imine ligands pyridine and 2,2′-bipyridine was investigated, yielding several neutral and cationic water-soluble derivatives.

Poly(2-acrylamido-2-methyl-1-propanamide) (PAMPA): A Neutral, Water-Soluble Synthetic Polymer with Double-Stranded Helix Conformation

2001 ◽  
Vol 84 (8) ◽  
pp. 2398-2408 ◽  
Author(s):  
Jing Wang ◽  
Filip Meersman ◽  
Robert Esnouf ◽  
Matthias Froeyen ◽  
Roger Busson ◽  
...  
Keyword(s):  
Synthetic Polymer ◽  
Water Soluble ◽  
Helix Conformation ◽  
Neutral Water

scholarly journals Efficient and selective molecular catalyst for the CO2-to-CO electrochemical conversion in water

2015 ◽  
Vol 112 (22) ◽  
pp. 6882-6886 ◽  
Author(s):  
Cyrille Costentin ◽  
Marc Robert ◽  
Jean-Michel Savéant ◽  
Arnaud Tatin
Keyword(s):  
Carbon Monoxide ◽  
Carbonic Acid ◽  
Water Soluble ◽  
Turnover Frequency ◽  
High Turnover ◽  
Molecular Catalyst ◽  
Electrochemical Conversion ◽  
Production Of Hydrogen ◽  
Soluble Molecule ◽  
Neutral Water

Substitution of the four paraphenyl hydrogens of iron tetraphenylporphyrin by trimethylammonio groups provides a water-soluble molecule able to catalyze the electrochemical conversion of carbon dioxide into carbon monoxide. The reaction, performed in pH-neutral water, forms quasi-exclusively carbon monoxide with very little production of hydrogen, despite partial equilibration of CO2 with carbonic acid—a low pKa acid. This selective molecular catalyst is endowed with a good stability and a high turnover frequency. On this basis, prescribed composition of CO–H2 mixtures can be obtained by adjusting the pH of the solution, optionally adding an electroinactive buffer. The development of these strategies will be greatly facilitated by the fact that one operates in water. The same applies for the association of the cathode compartment with a proton-producing anode by means of a suitable separator.

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