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Updated: Jan 21, 2026
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Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
Published on: March 22, 2020
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Hierarchical multi-shell 66-nuclei silver nanoclusters trapping subvalent Ag6 kernels.
Zhi Wang1, Feng-Lei Yang, Yang Yang
1School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, China. yangyang@jsnu.edu.cn.
Chemical Communications (Cambridge, England)
|August 10, 2019
Summary
Researchers developed novel hierarchical silver nanoclusters with a unique multi-shell structure. These nanoclusters trap ultrasmall silver fragments, offering new possibilities for nanomaterial fabrication and applications.
Area of Science:
- Nanotechnology
- Materials Science
- Inorganic Chemistry
Background:
- Fabricating complex hierarchical nanostructures presents significant challenges.
- Controlling the precise arrangement of atoms and ions within nanoclusters is crucial for their properties.
Purpose of the Study:
- To present a novel method for synthesizing hierarchical multi-shell silver nanoclusters.
- To investigate the structural characteristics and formation mechanisms of these unique nanoclusters.
Main Methods:
- Synthesis of silver nanoclusters involving the reduction of silver ions using DMF solvent.
- Characterization of the multi-shell structure, including the Ag6 core, MoO4(2-) ions, and Ag60 shell.
- Analysis of the role of carboxylate ligands in modulating surface patterns.
Main Results:
- Successfully fabricated three novel hierarchical multi-shell silver nanoclusters with 66 nuclei.
- Identified the trapping of ultrasmall Ag6(4+) nano-fragments by nine MoO4(2-) ions within the core.
- Observed the formation of an outer Ag60 shell and the influence of carboxylate ligands on surface polygon patterns.
Conclusions:
- The presented method offers a new route to synthesize complex hierarchical silver nanoclusters.
- The structural features, including the core-shell architecture and ligand modulation, are key to the nanocluster formation and properties.
- These findings advance the understanding of hierarchical nanostructure synthesis and design.
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