The Effect of Enzymatic Depolymerization of Arterial Mucopolysaccharides on Sodium Ion Content and Vessel Reactivity

1971 ◽  
Vol 40 (4) ◽  
pp. 293-303 ◽  
Author(s):  
G. S. Harris ◽  
W. A. Palmer
Keyword(s):  
Cation Binding ◽  
Sodium Ion ◽  
Sodium Ions ◽  
High Concentration ◽  
Ion Content ◽  
Binding Properties ◽  
Arterial Walls ◽  
Testicular Hyaluronidase ◽  
Enzymatic Depolymerization

1. The presence of mucopolysaccharides within arterial walls may be associated with the high concentration of sodium ions within this tissue. These polyanions are sensitive to enzymatic depolymerization which results in a loss of the cation binding properties of the molecule. 2. In this study testicular hyaluronidase perfused through isolated arterial segments resulted in a decrease in reactivity of the artery to 65% that of control arteries. Associated with this finding was a 33% decrease in the sodium ion content of the stimulated hyaluronidase-treated artery. When a variety of other sympathetically innervated tissues were treated with hyaluronidase there was no decrease in reactivity or sodium ion content.

Frontiers in β″-Alumina Research

MRS Bulletin ◽  
1989 ◽  
Vol 14 (9) ◽  
pp. 22-30 ◽  
Author(s):  
Bruce Dunn ◽  
Gregory C. Farrington ◽  
John O. Thomas
Keyword(s):  
Ion Exchange ◽  
Solid Electrolytes ◽  
High Conductivity ◽  
Sodium Ion ◽  
Sodium Ions ◽  
Monovalent Cations ◽  
Ion Content ◽  
Solid State Ionics ◽  
Trivalent Cations ◽  
Widespread Interest

Beta and β″-alumina are remarkable solid electrolytes whose study has been a principal theme in the field of solid state ionics ever since Yao and Kummer first reported the exceptionally high conductivity of sodium β-alumina in 1967. The unusual properties of sodium β-alumina stimulated widespread interest in both the science and technology of high conductivity solid electrolytes. Since Yao and Kummer's seminal work, many solid electrolytes have been explored, but interest in the β and β″-aluminas has endured, principally because of their virtually unique ability to undergo ion exchange in which the sodium ions are replaced by a wide variety of monovalent, divalent, and trivalent cations as well as various protonic species. The β and β″-aluminas thus are not single compounds, but a family of solid electrolytes with diverse properties and potential technological applications.Kummer first pointed out the ion exchange properties of sodium β-alumina by showing that the sodium ions in the structure can be replaced by different monovalent cations, such as Li+, K+, as well as H(H2O)x+ and NH4+. More recent studies have shown that the ion exchange chemistry of sodium β″-alumina, is far richer than that of sodium β″-alumina. In fact, the sodium ion content of β″-alumina can be exchanged for virtually any +1, +2, or +3 cation in the periodic chart.

Synthesis and Cation Binding Properties of p-Tert-butyl-calix[4]arene Bearing 8-Hydroxyquinoline Units

2018 ◽  
Vol 15 (12) ◽  
pp. 1037-1041
Author(s):  
Slim Mannai ◽  
Yang Kim ◽  
Abdullah Sulaiman Al-Ayed ◽  
Lassaad Baklouti ◽  
Abdelwaheb Hamdi
Keyword(s):  
Cation Binding ◽  
Binding Properties ◽  
Tert Butyl

Cation binding properties of an anionic gemini surfactant monolayer

2017 ◽  
Vol 522 ◽  
pp. 536-543 ◽  
Author(s):  
Jeveria Rehman ◽  
Concepcion P. Ponce ◽  
Hessamaddin Younesi Araghi ◽  
Matthew F. Paige
Keyword(s):  
Gemini Surfactant ◽  
Cation Binding ◽  
Binding Properties ◽  
Anionic Gemini Surfactant

FURTHER STUDIES ON THE BINDING OF γ-AMINOBUTYRIC ACID BY BRAIN

1967 ◽  
Vol 45 (12) ◽  
pp. 1795-1807 ◽  
Author(s):  
Paula Strasberg ◽  
K. A. C. Elliott
Keyword(s):  
Rat Brain ◽  
Mitochondrial Fraction ◽  
Sodium Ion ◽  
The Other ◽  
Aminobutyric Acid ◽  
Sodium Ions ◽  
Ninhydrin Reaction ◽  
Gaba Content

Factors which can interfere with the paper chromatographic – ninhydrin method for determining γ-aminobutyric acid (GABA) are described. The GABA–ninhydrin reaction does not involve loss of CO2. GABA that is occluded in subcellular particles in plain sucrose homogenates of rat brain does not readily exchange with radioactive GABA in solution. The relevant particles are found mostly in the "mitochondrial fraction". These particles deteriorate with time and manipulations, and tend to lose much of their GABA content. The presence of sodium (but not of potassium, calcium, or magnesium) in the suspending medium allows considerably more GABA to be bound. The extra bound GABA is exchangeable with free labelled GABA. Sodium also promotes some exchange between free and occluded GABA. It is concluded from the present and previous results that in brain in vivo very little GABA exists in a freely diffusing situation. There are two forms of bound GABA. One of these is an occluded or storage form which does not readily exchange with free GABA though exchange is to some extent promoted by sodium ions. The other is a form which occurs only in the presence of sodium ion and is freely exchangeable with GABA in solution.

The salt and lipid composition of model cheeses modifies in-mouth flavour release and perception related to the free sodium ion content

2014 ◽  
Vol 145 ◽  
pp. 437-444 ◽  
Author(s):  
Lauriane Boisard ◽  
Isabelle Andriot ◽  
Christophe Martin ◽  
Chantal Septier ◽  
Vanessa Boissard ◽  
...  
Keyword(s):  
Lipid Composition ◽  
Sodium Ion ◽  
Ion Content ◽  
Flavour Release

Exploring SnS nanoparticles interpenetrated with high concentration nitrogen-doped-carbon as anodes for sodium ion batteries

2019 ◽  
Vol 296 ◽  
pp. 806-813 ◽  
Author(s):  
Bingsheng Qin ◽  
Huang Zhang ◽  
Thomas Diemant ◽  
Xinwei Dou ◽  
Dorin Geiger ◽  
...  
Keyword(s):  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Concentration ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Cation binding properties of polyanions bearing fluorescent crown ether units

1995 ◽  
Vol 31 (6) ◽  
pp. 559-563 ◽  
Author(s):  
Masamitsu Shirai ◽  
Yoshiki Matoba ◽  
Masahiro Tsunooka
Keyword(s):  
Crown Ether ◽  
Cation Binding ◽  
Binding Properties

scholarly journals Experimental visualization of the diffusion pathway of sodium ions in the Na3[Ti2P2O10F] anode for sodium-ion battery

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Zhaohui Ma ◽  
Yuesheng Wang ◽  
Chunwen Sun ◽  
J. A. Alonso ◽  
M. T. Fernández-Díaz ◽  
...  
Keyword(s):  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ions ◽  
Diffusion Pathway
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