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Updated: Sep 10, 2025
08:39
Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
Published on: October 16, 2017
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Recent advances in chiral nanoparticle superstructures with long-range order.
Fenghua Zhang1, Yuting Bi1, Jingjing Wei1
1Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China. zyangchem@sdu.edu.cn.
Chemical Communications (Cambridge, England)
|August 26, 2025
Summary
Chiral nanoparticle superstructures self-assemble into unique chiral forms. These ordered assemblies display tunable chiroptical properties for advanced applications in optoelectronics and sensing.
Area of Science:
- Materials Science
- Nanotechnology
- Optics
Background:
- Chiral nanoparticle superstructures exhibit unique asymmetric geometries and chiroptical properties.
- Spherical nanoparticles often require chiral templates for asymmetric assembly.
- Anisotropic nanoparticles can self-assemble into chiral structures with or without templates.
Purpose of the Study:
- To review the formation and properties of long-range ordered chiral nanoparticle superstructures.
- To highlight the role of nanoparticle shape and assembly methods in achieving chirality.
- To discuss the applications and future directions of chiral nanoparticle assemblies.
Main Methods:
- Colloidal self-assembly of inorganic nanoparticles (spherical and anisotropic).
- Utilizing chiral templates (supramolecular polymers, DNA, proteins, liquid crystals) or template-free methods.
- Characterization of chiroptical properties, including dissymmetry factors and circularly polarized luminescence.
Main Results:
- Anisotropic nanoparticles enable chiral assembly with or without templates, driven by interfacial forces or curvature matching.
- Achieved superstructures exhibit tunable chiroptical responses with high dissymmetry factors.
- Precise control over interparticle spacing and helical pitch allows performance tuning.
Conclusions:
- Chiral nanoparticle superstructures are versatile platforms for applications in optoelectronics, metamaterials, biosensing, and drug screening.
- Further research into chirality transfer mechanisms and strong coupling effects is crucial.
- Advances in quantum photonics and precision medicine are anticipated.
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