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Updated: Feb 10, 2026
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Assembly of Gold Nanorods into Chiral Plasmonic Metamolecules Using DNA Origami Templates
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External-Stimuli-Assisted Control over Assemblies of Plasmonic Metals
Kanako Watanabe1, Kotaro Kuroda2, Daisuke Nagao3
1Department of Chemical Engineering, Tohoku University, Sendai 980-8579, Japan. kanako.w@dc.tohoku.ac.jp.
Materials (Basel, Switzerland)
|May 16, 2018
Summary
Controlling plasmonic nanoparticle (NP) assembly using external stimuli like pH, temperature, and light offers tunable optical and sensing properties. Future research aims for reversible NP assembly control via these stimuli.
Area of Science:
- Nanotechnology
- Materials Science
- Physical Chemistry
Background:
- Plasmonic nanoparticles (NPs) exhibit unique optical and sensing properties dependent on their assembly state.
- Controlling NP assembly is crucial for tailoring these properties for various applications.
Purpose of the Study:
- To review methods for controlling plasmonic NP assembly using external stimuli.
- To explore the potential for reversible control over NP assembly states.
Main Methods:
- Review of recent studies on external stimuli-induced NP assembly.
- Analysis of stimuli parameters: intensity, duration, and frequency.
- Discussion of stimuli including pH, temperature, light, magnetic, and electric fields.
Main Results:
- External stimuli provide powerful and tunable control over plasmonic NP assembly.
- Parameters like intensity, application time, and frequency offer operational flexibility.
- Diverse stimuli enable precise manipulation of NP aggregation.
Conclusions:
- External stimuli are effective for controlling plasmonic NP assembly and their properties.
- Reversible control over NP assembly states is a promising direction for future research.
- Advanced control over NP assembly can lead to enhanced optical and sensing functionalities.
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