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Related Concept Videos

Mineral, Vitamin and Water Absorption01:27

Mineral, Vitamin and Water Absorption

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Electrolytes are essential minerals and ions primarily obtained from the diet and absorbed through the gastrointestinal tract. Most electrolytes are absorbed in the small intestine. While the absorption of iron and calcium primarily occurs in the duodenum, calcium is also absorbed in the jejunum and ileum. In these regions, passive diffusion contributes to its absorption alongside active transport mechanisms in the duodenum. These ions can exit the enterocytes through specialized active...
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Solubility Equilibria: Ionic Product of Water01:16

Solubility Equilibria: Ionic Product of Water

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Pure water is a weak electrolyte; only a small amount ionizes into hydrogen and hydroxide ions. At any given temperature, the concentration of undissociated water is almost constant, so the ionic product of water is the product of the hydrogen and hydroxide ion concentrations, denoted as Kw. The square root of Kw gives the individual ion concentrations.
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le...
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Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

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Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
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Factors Affecting Solubility04:01

Factors Affecting Solubility

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Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
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Solubility Equilibria03:07

Solubility Equilibria

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Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
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Physical Properties Affecting Solubility02:19

Physical Properties Affecting Solubility

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Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
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Updated: Feb 14, 2026

Water in Oil Emulsions: A New System for Assembling Water-soluble Chlorophyll-binding Proteins with Hydrophobic Pigments
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Water in Oil Emulsions: A New System for Assembling Water-soluble Chlorophyll-binding Proteins with Hydrophobic Pigments

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Water-Soluble Vitamin E-Tocopheryl Phosphate.

Jean-Marc Zingg1

  • 1Miller School of Medicine, University of Miami, Miami, FL, United States.

Advances in Food and Nutrition Research
|February 26, 2018
PubMed
Summary
This summary is machine-generated.

Water-soluble vitamin E precursors like alpha-tocopheryl phosphate (αTP) offer unique cellular regulatory effects and are key in targeted drug delivery systems, despite rapid conversion to lipid-soluble vitamin E.

Keywords:
AnalogsApoptosisCD36CarriersChaperonesGene expressionLipid exchangeLipid transport proteinsSR-BISignal transductionVitamin E“Mitocan”

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Pharmacology

Background:

  • Vitamin E's hydrophobicity presents bioavailability and accumulation challenges.
  • Water-soluble vitamin E precursors (e.g., α-tocopheryl phosphate, αTP) enhance solubility and stability.
  • These precursors rapidly convert to lipid-soluble vitamin E upon uptake.

Purpose of the Study:

  • To review the chemical properties, transport, metabolism, and molecular mechanisms of αTP.
  • To explore αTP's regulatory effects on cellular processes and gene expression.
  • To discuss αTP's potential in disease prevention and nanocarrier applications.

Main Methods:

  • Literature review of chemical characteristics, transport, and metabolic pathways.
  • Analysis of molecular mechanisms of action for αTP.
  • Synthesis of current research on αTP's cellular and therapeutic roles.

Main Results:

  • αTP exhibits unique regulatory effects on signal transduction and gene expression.
  • αTP modulates diverse cellular events including proliferation, apoptosis, and angiogenesis.
  • αTP derivatives are utilized in nanocarriers for targeted delivery of various molecules.

Conclusions:

  • αTP possesses significant biological activities beyond its role as a vitamin E precursor.
  • αTP's unique properties support its potential in disease prevention strategies.
  • αTP is a valuable component in advanced drug and nutrient delivery systems.