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Related Concept Videos

Ionic Radii03:10

Ionic Radii

33.6K
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...
33.6K
Ionic Bonds00:42

Ionic Bonds

131.0K
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...
131.0K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.1K
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...
20.1K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

87.5K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
87.5K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.2K
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.
68.2K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.1K
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...
17.1K

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Updated: Feb 5, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.6K

Biopolymer-Based Composite Materials Prepared Using Ionic Liquids.

Saerom Park1, Kyeong Keun Oh2, Sang Hyun Lee3

  • 1Department of Biological Engineering, Konkuk University, Seoul, South Korea.

Advances in Biochemical Engineering/Biotechnology
|September 23, 2018
PubMed
Summary
This summary is machine-generated.

Ionic liquids enable the fabrication of biocompatible and biodegradable biopolymer composites into various forms. This review details methods for preparing these advanced materials, including biopolymer blends.

Keywords:
BiopolymerBlendCompositeGelIonic liquid

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Last Updated: Feb 5, 2026

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Area of Science:

  • Materials Science
  • Biotechnology
  • Green Chemistry

Background:

  • Biopolymer-based composite materials offer biocompatibility and biodegradability, crucial for biomedical and environmental applications.
  • Ionic liquids serve as effective solvents for processing diverse biopolymers like polysaccharides and proteins.
  • Fabrication into various forms (molded shapes, films, fibers, beads) is achievable using ionic liquid processing.

Purpose of the Study:

  • To summarize the preparation processes of biopolymer-based composite materials utilizing ionic liquids.
  • To highlight the specific methods for creating biopolymer blends and their applications.
  • To provide a comprehensive overview of ionic liquid-assisted biopolymer processing.

Main Methods:

  • Dissolution of biopolymers in ionic liquids.
  • Regeneration of biopolymers using anti-solvents.
  • Shaping and drying of the regenerated biopolymer materials.
  • Preparation and characterization of biopolymer blend composites.

Main Results:

  • Ionic liquids facilitate the dissolution and subsequent regeneration of various biopolymers.
  • Diverse forms of biopolymer materials, including blends, can be successfully fabricated.
  • The described methods offer a versatile approach to creating functional biopolymer composites.

Conclusions:

  • Ionic liquid-based processing is a viable and effective strategy for fabricating advanced biopolymer composites.
  • This approach supports the development of materials for biomedical, pharmaceutical, and environmental applications.
  • Further exploration of biopolymer blends processed with ionic liquids holds significant potential.