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Encoding Morphogenesis of Quasi-Triangular Gold Nanoprisms with DNA
Weina Fang1,2, Jiangming Wang1, Shuang Lu3
1School of Chemical Science and Engineering, Shanghai Research Institute for Intelligent Autonomous Systems, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai, 200092, China.
Angewandte Chemie (International Ed. in English)
|July 28, 2022
Summary
This study stabilizes unstable gold quasi-nanoprisms using thiol-DNA (HS-DNA), enabling investigation of their plasmonic properties and use in self-assembly for advanced light manipulation applications.
Area of Science:
- Nanotechnology
- Materials Science
- Plasmonics
Background:
- Gold nanoparticle properties depend on morphology.
- Research on nonequilibrium gold nanoprism intermediates is limited.
- Understanding these intermediates is key for advanced applications.
Purpose of the Study:
- To stabilize low-stability gold quasi-nanoprisms using thiol-DNA (HS-DNA).
- To investigate the plasmonic properties of these stabilized nanoprisms.
- To explore their use as building blocks for self-assembly and information encoding.
Main Methods:
- Employing thiol-DNA (HS-DNA) to protect gold quasi-nanoprisms with varying truncation degrees.
- Investigating the stability of HS-DNA protected quasi-nanoprisms in different microenvironments.
- Utilizing HS-DNA loaded quasi-nanoprisms for programmable self-assembly and information encoding.
Main Results:
- HS-DNA significantly enhances the stability of quasi-nanoprisms.
- Intrinsic plasmonic properties related to morphology were successfully investigated.
- Programmable self-assembly of higher-order hybrid structures was achieved.
- Orthogonal barcode-like information encoding and decoding capabilities were demonstrated.
Conclusions:
- Thiol-DNA (HS-DNA) is an effective stabilizer for low-stability gold quasi-nanoprisms.
- These stabilized nanoprisms are versatile platforms for self-assembly and nanoscale information technology.
- This work opens new avenues for light manipulation at the nanoscale using engineered nanomaterials.
