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Updated: Aug 29, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Using cellulose, starch and β-cyclodextrin poly/oligosaccharides as chiral inducers for preparing chiral particles
Huli Yu1, Liangjie Wang1, Sheng Liu2
1College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, PR China; Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China; The Key Laboratory of Water and Sediment Sciences (Ministry of Education), College of Environmental Sciences and Engineering, Peking University, Beijing 100871, PR China.
Researchers developed a method to create optically active particles using renewable polysaccharides. These chiral copper oxide composite particles show promise for enantioselective applications.
Area of Science:
- Materials Science
- Green Chemistry
- Chiral Chemistry
Background:
- Poly/oligosaccharides are abundant, renewable chiral resources.
- Chiral materials are crucial for enantioselective applications.
- Developing sustainable methods for chiral material synthesis is essential.
Purpose of the Study:
- To develop a general route for preparing optically active particles using poly/oligosaccharides.
- To utilize poly/oligosaccharides as both chiral inducers and growth templates.
- To explore the potential of these chiral materials in enantioselective applications.
Main Methods:
- Complexing poly/oligosaccharides with Cu(NH3)4^2+ ions to transfer chirality to CuO.
- Using poly/oligosaccharides to direct the in situ growth of CuO.
- Employing cellulose nanocrystal (CNC), starch (ST), and β-cyclodextrin (β-CD) as representative chiral inducers.
Main Results:
- Successfully prepared dandelion, duchesnea, and chrysanthemum-like composite particles with chiroptical activity.
- Demonstrated that chiral CuO/poly(oligo)saccharide particles (CSP) exhibit enantioselective abilities.
- Showcased differentiation in coordination with tryptophan (Trp) enantiomers, forming distinct Cu-Trp metal-organic framework architectures.
Conclusions:
- A facile and accessible approach to synthesize novel functional chiral materials from poly/oligosaccharides has been established.
- The prepared chiral composite particles hold significant promise for various chiral applications.
- This work highlights the potential of biomass-derived materials in advanced functional material development.
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