The absorption optical system of a Beckman XL-I ultracentrifuge has been used to monitor the Donnan distribution of ions in polysaccharide solutions dialyzed against sodium phosphate buffer (pH 6.8, 10.08) supplemented with 0.2 mM chromate as an indicator ion. For dextran sulfate, heparin, and polygalacturonate, the effective net charges are shown to be only one-third of those deduced from the chemical structures-a reflection of charge screening (counterion condensation) in aqueous polyelectrolyte solutions. Whereas the extent of charge screening for the first two polysaccharides agrees well with theoretical prediction, the disparity in the corresponding comparison for polygalacturonate reflects partial esterification of carboxyl groups, wh...
The applied pH during the TEMPO-mediated (2,2,6,6-tetramethylpiperidine-1-oxyl) oxidation of the pol...
cited By 18International audienceGel permeation chromatography of water-soluble polymers, with speci...
We show experimentally that Manning counterion condensation also leads to a renormalization of the ...
The absorption optical system of a Beckman XL-I ultracentrifuge has been used to monitor the Donnan ...
Ionic charge on a macromolecule complicates the determination of its molecular weight in solution du...
An important aim of physico-chemical studies on natural and synthetic ionic-polysaccharides is to he...
CE applications to charged polysaccharides are briefly reported. A simple procedure is presented to ...
Polyelectrolytes are distinguished by their linear charge density, a parameter responsible for their...
We show experimentally that the solutions properties of highly charged polyelectrolytes depend on th...
The net electric charge zpof a polyacrylamide molecule (Praestol, Mol. Wt. 3.4×106) in aqueous...
Experimental and theoretical data have been revisited to shed light onto the aspects of hydration an...
International audienceTile electrokinetic properties of carboxymethyldextran, a soft and anionic pol...
The study includes partitioning of proteins in aqueous two-phase systems consisting of the polymer d...
International audienceThe effect of the simultaneous presence of mono- and divalent cations on the t...
An easy analytical method for determination of the charge density of polyelectrolytes, including pol...
The applied pH during the TEMPO-mediated (2,2,6,6-tetramethylpiperidine-1-oxyl) oxidation of the pol...
cited By 18International audienceGel permeation chromatography of water-soluble polymers, with speci...
We show experimentally that Manning counterion condensation also leads to a renormalization of the ...
The absorption optical system of a Beckman XL-I ultracentrifuge has been used to monitor the Donnan ...
Ionic charge on a macromolecule complicates the determination of its molecular weight in solution du...
An important aim of physico-chemical studies on natural and synthetic ionic-polysaccharides is to he...
CE applications to charged polysaccharides are briefly reported. A simple procedure is presented to ...
Polyelectrolytes are distinguished by their linear charge density, a parameter responsible for their...
We show experimentally that the solutions properties of highly charged polyelectrolytes depend on th...
The net electric charge zpof a polyacrylamide molecule (Praestol, Mol. Wt. 3.4×106) in aqueous...
Experimental and theoretical data have been revisited to shed light onto the aspects of hydration an...
International audienceTile electrokinetic properties of carboxymethyldextran, a soft and anionic pol...
The study includes partitioning of proteins in aqueous two-phase systems consisting of the polymer d...
International audienceThe effect of the simultaneous presence of mono- and divalent cations on the t...
An easy analytical method for determination of the charge density of polyelectrolytes, including pol...
The applied pH during the TEMPO-mediated (2,2,6,6-tetramethylpiperidine-1-oxyl) oxidation of the pol...
cited By 18International audienceGel permeation chromatography of water-soluble polymers, with speci...
We show experimentally that Manning counterion condensation also leads to a renormalization of the ...