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Updated: Oct 4, 2025
14:52
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
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Encoding Enantiomeric Molecular Chiralities on Graphene Basal Planes
Yongqiang Meng1, Jingbiao Fan1,2, Meihui Wang3
1Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 15 North Third Ring East Road, Chaoyang District, Beijing, 100029, China.
Angewandte Chemie (International Ed. in English)
|February 2, 2022
Summary
Researchers created chiral graphene, a material with unique properties, by transferring chirality from amino acids. This novel chiral graphene shows promise for enantioselective recognition and other chirality-based applications.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Graphene exhibits remarkable properties, making it suitable for diverse applications.
- Graphene's inherent molecular structure is achiral, limiting its use in chiral-specific applications.
- Developing methods to impart chirality to graphene is crucial for expanding its functional capabilities.
Purpose of the Study:
- To develop a direct method for preparing chiral graphene.
- To functionalize graphene with chirality using amino acids.
- To explore the potential of chiral graphene in enantioselective recognition.
Main Methods:
- Transferring chiral conformation from amino acids to graphene via π-π interaction.
- Utilizing thermal fusion to stabilize the chiral imprints on the graphene basal plane.
- Employing atomic resolution transmission electron microscopy to analyze the coverage of chiral regions.
Main Results:
- Achieved areal coverage of molecular imprints (chiral regions) up to 64% on graphene.
- Demonstrated close packing of amino acid molecules prior to thermal fusion, leading to high imprint concentration.
- Successfully tested the molecular chirality-encoded graphene as an electrode for electrochemical enantioselective recognition.
Conclusions:
- A novel method for creating chiral graphene by encoding molecular chirality from amino acids has been established.
- The resulting chirality-encoded graphene shows potential for electrochemical enantioselective recognition.
- The developed encoding procedure may be extendable to other two-dimensional materials for various chirality-related studies.
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