Home›Cell Biology›Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
Cell BiologyJoVE (Open Access)Citable · DOI
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
DOI: 10.3791/53876-v
What you'll learn
✓Synthesize silver nanocubes using colloidal chemistry methods
✓Deposit polyelectrolyte layers for nanostructure assembly
✓Fabricate plasmonic nanopatch antennas with sub-10 nm gaps
Protocol
Biopharma Insights A protocol for the colloidal synthesis of silver nanocubes and fabrication of plasmonic nanoscale patch antennas with sub-10 nm gaps is presented.
Difficulty
advanced
Total time
~3-5 days (nanocube synthesis 2-3 days, assembly and characterization 1-2 days)
Steps
1
Synthesize silver nanocubes via colloidal chemistry
Perform wet-chemistry synthesis to produce monodisperse silver nanocubes as precursor material. This foundational step generates the plasmonic building blocks for subsequent antenna assembly.
▶ 00:46
2
Deposit polyelectrolyte layers on substrate
Apply sequential polyelectrolyte coatings using layer-by-layer assembly technique to create a controlled surface for nanostructure placement.
▶ 04:17
3
Add dye molecules and assemble nanopatch antennas
Deposit Cy5 fluorescent dye molecules followed by silver nanocubes to form plasmonic nanopatch antenna structures with precisely controlled nanometer-scale gaps.