Solution Chemistry of Iron in Biological Media

Inorganic Biochemistry of Iron Metabolism ◽

10.1002/0470845791.ch1 ◽

2003 ◽

pp. 1-15 ◽

Cited By ~ 1

Keyword(s):

Solution Chemistry ◽

Biological Media

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Solution chemistry effects on the solvation shell of metal ions

10.26434/chemrxiv.12048738.v1 ◽

2020 ◽

Author(s):

Xiangwen Wang ◽

Dimitrios Toroz ◽

Seonmyeong Kim ◽

Simon Clegg ◽

Gun-Sik Park ◽

...

Keyword(s):

Metal Ions ◽

Pure Water ◽

Solvation Shell ◽

Solution Chemistry ◽

Chemical Characteristics ◽

Velocity Autocorrelation Function ◽

Ionic Solvation ◽

General Terms ◽

Alkaline Earth Metal Ions ◽

Wide Range

<div> As natural aqueous solutions are far from being pure water, being rich in ions, the properties of solvated ions are of relevance for a wide range of systems, including biological and geochemical environments. We conducted ab initio and classical MD simulations of the alkaline earth metal ions Mg2+ and Ca2+ and of the alkali metal ions Li+, Na+, K+ and Cs+ in pure water and electrolyte solutions containing the counterions Cl– and SO42–. Through a detailed analysis of these simulations, this study reports on the effect of solution chemistry (composition and concentration of the solution) to the ion–water structural properties and interaction strength, and to the dynamics, hydrogen bond network, and low-frequency dynamics of the ionic solvation shell. Except for the ion–water radial distribution function, which is weakly dependent on the counter-ions and concentrations, we found that all other properties can be significantly influenced by the chemical characteristics of the solution. Calculation of the velocity autocorrelation function of magnesium ions, for example, shows that chlorine ions located in the second coordination shell of Mg2+ weaken the Mg(H2O)62+ hydration ‘cage’ of the cation. The result reported in this study suggest that ionic solvation shell can be significantly influenced by the interactions between other ions present in solution ions, especially those of opposite charge. In more general terms, the chemical characteristics of the solution, including the balance between ion-solvent and ion-ion interactions, could result in significant differences in behavior and function of the ionic solvation shell. </div>

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DIAGNOSTICS AND TREATMENT OF POISONING WITH THALLIUM

Токсикологический вестник ◽

10.36946/0869-7922-2018-5-9-15 ◽

2018 ◽

pp. 9-15 ◽

Cited By ~ 3

Author(s):

L. B. Zavaliy ◽

A. Yu. Simonova ◽

M. M. Potskhveriya ◽

Yu. N. Ostapenko ◽

M. G. Gadzhieva ◽

...

Keyword(s):

Differential Diagnosis ◽

Clinical Picture ◽

Clinical Guidelines ◽

The Body ◽

Biological Media ◽

Pathophysiological Mechanisms ◽

Thallium Poisoning ◽

The World

Cases of thallium poisonings are regularly reported in media. In the present work, the world experience in diagnostics and treatment of victims with thallium poisoning has been compiled and summarized, search for clinical guidelines for the diagnostics, treatment and rehabilitation of patients has been carried out. The toxicokinetics and toxicodynamics, as well as pathophysiological mechanisms of thallium influence on the body are described in detail. Toxic and lethal concentrations of poison in biological media, as well as its tropicity to various tissues and body systems were determined. The clinical picture depending on the timing of poisoning and the dose of poison is described in detail. Difficulties of the differential diagnosis are defined. The most interesting cases of criminal and household poisonings with various terms of establishment of the diagnosis, doses of poisoning and outcomes are presented.

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