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Related Concept Videos

Micelles01:30

Micelles

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Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
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Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
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Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
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Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
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Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
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Related Experiment Video

Updated: Mar 5, 2026

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Micellization in vegetable oils: A structural characterisation.

Ophélie Fadel1, Luc Girard1, Donatien Gomes Rodrigues1

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Colloids and Surfaces. B, Biointerfaces
|March 30, 2017
PubMed
Summary
This summary is machine-generated.

Polyglyceryl-3-diisostearate (PG3DS) enhances the solubilization of polar antioxidants in vegetable oils. This bio-sourced emulsifier forms reverse aggregates, improving antioxidant yield through supramolecular organization.

Keywords:
Polyphenol antioxidantReverse micelleSAXSVegetable oil

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Area of Science:

  • Food Science
  • Materials Science
  • Chemistry

Background:

  • Vegetable oils often contain polar compounds, including beneficial antioxidants.
  • Efficiently solubilizing these polar compounds in oil-based systems presents a significant challenge.
  • Polyglyceryl-3-diisostearate (PG3DS) is a cosmetic ingredient known for its emulsifying properties.

Purpose of the Study:

  • To investigate the solubilization of polar antioxidants in vegetable oils.
  • To evaluate the role of polyglyceryl-3-diisostearate (PG3DS) in enhancing this solubilization.
  • To understand the aggregation behavior of PG3DS in different oil polarities.

Main Methods:

  • Solubilization experiments of polar antioxidants in vegetable oils.
  • Analysis of PG3DS aggregation properties using X-ray scattering.
  • Investigation of the effect of oil polarity on PG3DS critical concentration.

Main Results:

  • PG3DS significantly increases the yield of polar antioxidant solubilization in vegetable oils.
  • PG3DS forms elongated reverse aggregates with a polar core.
  • The critical concentration for PG3DS aggregation is dependent on the polarity of the vegetable oil.
  • These aggregates facilitate the efficient solubilization of polar antioxidants.

Conclusions:

  • PG3DS is an effective emulsifier for enhancing the solubility of polar antioxidants in vegetable oils.
  • The supramolecular organization of PG3DS, specifically its reverse aggregates, is key to its solubilization capabilities.
  • This finding has implications for the formulation of functional foods and nutraceuticals.