Related Experiment Video
Updated: Jul 4, 2026
10:33
An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Chromonic liquid crystals: properties and applications as functional materials
Suk-Wah Tam-Chang1, Liming Huang
1Department of Chemistry, University of Nevada, Reno NV 89557, USA. tchang@unr.edu
Chemical Communications (Cambridge, England)
|June 10, 2008
Summary
Chromonic liquid crystals self-assemble from aromatic compounds in water. Recent research covers their design, alignment, and applications in functional materials and biosensors.
Area of Science:
- Materials Science
- Supramolecular Chemistry
Background:
- Chromonic liquid crystals (CLCs) are formed by self-organization of aromatic compounds with ionic or hydrophilic groups in aqueous solutions.
- Research on CLCs has significantly advanced over the last two decades.
Purpose of the Study:
- To review the progress in chromonic liquid crystal research over the past 20 years.
- To highlight key areas including molecular design, alignment techniques, and applications.
Main Methods:
- Review of existing literature on chromonic liquid crystals.
- Analysis of studies on commercially available compounds and molecularly designed mesogens.
- Examination of novel alignment processes and application development.
Main Results:
- Significant advancements in understanding CLC self-assembly.
- Development of molecularly designed mesogens with tailored properties.
- Emergence of new alignment techniques and applications in functional materials and biosensors.
Conclusions:
- Chromonic liquid crystals represent a dynamic field with diverse applications.
- Continued research promises further innovation in materials science and sensor technology.
Related Concept Videos
01:21Polymer Classification: Crystallinity
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
01:28Classification and Mechanical Properties of Synthetic Polymers
Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...
01:18Supercritical Fluid Chromatography
Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
SFC utilizes a supercritical fluid mobile phase,...
02:54Molecular and Ionic Solids
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...
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...