DNA-Based Plasmonic Heterogeneous Nanostructures: Building, Optical Responses, and Bioapplications

Area of Science:

• Nanotechnology
• Materials Science
• Biophysics

Background:

• Functional nanoparticles can be integrated into specific architectures for precise light manipulation.
• Plasmonic metal-based heterogeneous nanostructures are synthesized using DNA as a template.
• Controlling nanostructure architecture is key to regulating optical responses.

Purpose of the Study:

• To provide a comprehensive review of heterogeneous nanostructures.
• To overview controllable synthesis and self-assembly methods.
• To analyze the impact of structural parameters on optical responses and discuss applications.

Main Methods:

• Review of literature on DNA-templated synthesis of plasmonic heterogeneous nanostructures.
• Analysis of structure-property relationships in these nanostructures.
• Discussion of potential applications and associated challenges.

Main Results:

• DNA templating enables controllable synthesis and self-assembly of heterogeneous nanostructures.
• Structural parameters significantly influence the optical responses of these nanostructures.
• Heterogeneous nanostructures offer potential in biosensing, bioanalysis, in vivo monitoring, and phototheranostics.

Conclusions:

• Heterogeneous nanostructures fabricated via DNA templating offer precise control over light-matter interactions.
• Understanding structure-optical response relationships is crucial for optimizing their performance.
• These nanomaterials hold significant promise for advanced biomedical applications, despite existing challenges.