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Related Concept Videos

Colloids03:22

Colloids

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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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Solubility03:00

Solubility

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Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
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Ion Exchange01:17

Ion Exchange

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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Detergent Purification of Membrane Proteins01:18

Detergent Purification of Membrane Proteins

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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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Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

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Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Colloidal precipitates01:09

Colloidal precipitates

4.9K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
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Related Experiment Video

Updated: Jan 15, 2026

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils
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Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils

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Cyclodextrins, Surfactants and Their Inclusion Complexes.

Ana Pilipović1, Vesna Tepavčević1, Dileep Kumar2,3

  • 1Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia.

Molecules (Basel, Switzerland)
|October 16, 2025
PubMed
Summary

Cyclodextrins and surfactants form inclusion complexes driven by the hydrophobic effect. Their binding affinity and stoichiometry depend on cyclodextrin size and surfactant structure.

Keywords:
critical micellar concentrationdetailed balanceinclusion complexmicellestoichiometry

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Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study
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Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study

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Enhanced Oil Recovery using a Combination of Biosurfactants
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Enhanced Oil Recovery using a Combination of Biosurfactants

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Transport Properties of Ibuprofen Encapsulated in Cyclodextrin Nanosponge Hydrogels: A Proton HR-MAS NMR Spectroscopy Study
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Enhanced Oil Recovery using a Combination of Biosurfactants
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Enhanced Oil Recovery using a Combination of Biosurfactants

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Area of Science:

  • Supramolecular Chemistry
  • Physical Chemistry

Background:

  • Cyclodextrins (CDs) are cyclic oligosaccharides with unique structures featuring hydrophobic cavities and hydrophilic exteriors.
  • Surfactants are amphipathic molecules that self-assemble into micelles in aqueous solutions.
  • Understanding the interactions between CDs and surfactants is crucial for various applications.

Purpose of the Study:

  • To provide an overview of cyclodextrin structure and derivatives.
  • To present a thermodynamic model for cyclodextrin-surfactant inclusion complex formation.
  • To discuss factors influencing complex formation, including cavity size, surfactant structure, and temperature.

Main Methods:

  • Thermodynamic modeling of inclusion complex formation.
  • Discussion of experimental techniques for studying CD-surfactant complexes.

Main Results:

  • The hydrophobic effect is the primary driving force for inclusion complex formation at lower and room temperatures.
  • The size of the cyclodextrin cavity and the structure of the surfactant influence the stoichiometry and binding affinity.
  • Key experimental methods for studying these complexes are outlined.

Conclusions:

  • Cyclodextrin-surfactant inclusion complexes are formed through a thermodynamically driven process.
  • The structural features of both cyclodextrins and surfactants dictate the characteristics of the resulting complexes.
  • This study provides insights into the fundamental interactions governing these supramolecular assemblies.