Bottom-Up Metasurfaces for Biotechnological Applications.

Area of Science:

• Nanophotonics and Plasmonics
• Materials Science
• Biotechnology

Background:

• Metasurfaces, 2D counterparts of metamaterials, manipulate light for applications like optical communications and biosensing.
• Traditional metasurface fabrication relies on precise nanofabrication of meta-atoms, which is effort-intensive and costly.
• Bottom-up methods using colloidal nanoparticles offer a promising alternative for scalable and cost-effective metasurface production.

Purpose of the Study:

• To review recent advances in bottom-up fabrication of hybrid metasurfaces.
• To highlight applications of plasmonic nanoparticle-based metasurfaces, particularly in biotechnology.
• To explore perspectives for disordered metasurface design and applications.

Main Methods:

• Review of literature on bottom-up fabrication of hybrid metasurfaces using colloidal nanoparticles.
• Emphasis on plasmonic nanoparticle self-assembly for disordered metasurfaces.
• Discussion of hybrid approaches combining bottom-up and top-down methods for organized metasurfaces.

Main Results:

• Bottom-up methods enable rapid, cost-effective fabrication of disordered metasurfaces.
• Plasmonic nanoparticle metasurfaces exhibit diverse applications, especially in biotechnology.
• Hybrid fabrication strategies can yield organized metasurface structures.

Conclusions:

• Bottom-up fabrication with colloidal nanoparticles accelerates metasurface technology development.
• Disordered metasurfaces present unique opportunities for future design and applications.
• Hybrid metasurfaces bridge the gap between bottom-up scalability and top-down precision.