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Related Concept Videos

Ionic Radii03:10

Ionic Radii

33.9K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.9K
Ionic Bonds00:42

Ionic Bonds

132.2K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
132.2K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.3K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.3K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

49.8K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
49.8K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.3K
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.
68.3K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.9K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.9K

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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids

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Ionic liquid-induced aggregate formation and their applications.

Rupam Dutta1, Sangita Kundu1, Nilmoni Sarkar2

  • 1Department of Chemistry, Indian Institute of Technology, Kharagpur, WB, 721302, India.

Biophysical Reviews
|March 10, 2018
PubMed
Summary
This summary is machine-generated.

Researchers are exploring novel supramolecular assemblies using surface-active ionic liquids (SAILs) and dyes. These advanced materials form vesicles with potential applications in drug delivery and nanoparticle synthesis.

Keywords:
BiomoleculesDye moleculesSAILSupramolecular assemblySurfactant·RTIL

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science

Background:

  • Historically, oppositely charged surfactants formed stable supramolecular assemblies.
  • Surface-active ionic liquids (SAILs) have emerged as key components in supramolecular chemistry.
  • Recent research incorporates biomolecules and dye molecules into these assemblies.

Purpose of the Study:

  • To investigate the formation and properties of supramolecular aggregates using surfactant/SAIL and SAIL/SAIL pairs.
  • To explore the self-assembly of dye/surfactant and dye/SAIL systems.
  • To highlight the potential of these assemblies, particularly vesicles, in biological applications and materials synthesis.

Main Methods:

  • Utilizing electrostatic, hydrophobic, and π-π stacking interactions for self-assembly.
  • Formation of various supramolecular aggregates including micelles, mixed micelles, and vesicles.
  • Investigating the interaction of biomolecules and dye molecules with SAILs.

Main Results:

  • SAILs have replaced traditional surfactants in forming diverse supramolecular aggregates.
  • Dye molecules, when paired with surfactants or SAILs, yield distinct assemblies.
  • Vesicular assemblies demonstrate potential as drug carriers and microreactors for nanoparticle synthesis.

Conclusions:

  • The field has advanced from simple surfactant pairs to complex systems involving SAILs, biomolecules, and dyes.
  • Vesicles formed through these advanced supramolecular strategies offer significant biological and synthetic utility.