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Updated: Jan 5, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
Single- and multi-component chiral supraparticles as modular enantioselective catalysts.
Si Li1,2,3, Juan Liu4, Naomi S Ramesar2,3
1State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China.
Chiral zinc sulfide (ZnS) nanoparticles self-assemble into supraparticles that mimic biological functions, acting as photocatalysts for enantioselective tyrosine conversion.
Area of Science:
- Nanotechnology
- Biomimicry
- Photocatalysis
Background:
- Biological nanoassemblies like exosomes and capsids are vital in living systems.
- Inorganic nanoparticle supraparticles (SPs) structurally mimic bioassemblies, but functional mimicry is unexplored.
Purpose of the Study:
- To investigate if inorganic nanoparticle supraparticles can replicate biochemical functions of biological nanoassemblies.
- To explore the photocatalytic and enantioselective capabilities of chiral ZnS SPs.
Main Methods:
- Self-assembly of chiral ZnS nanoparticles into 70-100 nm supraparticles.
- Photocatalytic conversion of L- and D-tyrosine (Tyr) into dityrosine (diTyr).
- Molecular dynamic simulations to understand chiral bias mechanisms.
Main Results:
- Chiral ZnS SPs exhibit sub-nanoscale porosity and function as photocatalysts.
- SPs enantioselectively convert Tyr to diTyr, mimicking photosynthetic bacterial organelles.
- Chiral bias originates from interstitial spaces and enantiomer partitioning, enhanced by Au NP co-assembly.
Conclusions:
- Chiral ZnS SPs successfully replicate specific biochemical functions of biological nanoassemblies.
- This work presents a novel approach for enantioselective oxidative coupling of phenols.
- Potential applications in biomedical fields and beyond.
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