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Related Experiment Video

Updated: May 2, 2026

Photodeposition of Pd onto Colloidal Au Nanorods by Surface Plasmon Excitation
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Electroactive layer-by-layer plasmonic architectures based on Au nanorods.

Tiziana Placido1, Elisabetta Fanizza, Pinalysa Cosma

  • 1CNR-IPCF Istituto per i Processi Chimici e Fisici, Sez. Bari , c/o Dip. Chimica Via Orabona 4, 70126 Bari, Italy.

Langmuir : the ACS Journal of Surfaces and Colloids
|February 26, 2014
PubMed
Summary
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This study demonstrates the fabrication of gold nanorod (Au NR) nanostructured films using layer-by-layer assembly. The film

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrochemistry

Background:

  • Layer-by-layer (LbL) assembly is a versatile technique for fabricating nanostructured films.
  • Gold nanorods (Au NRs) possess unique plasmonic properties suitable for various applications.

Purpose of the Study:

  • To investigate the fabrication of Au NR-based nanostructured films using LbL assembly.
  • To explore the influence of fabrication parameters on film morphology and plasmonic properties.
  • To assess the electrochemical activity and charge transport properties of the fabricated multilayer films.

Main Methods:

  • Fabrication of multilayer films using LbL assembly of poly(sodium styrenesulfonate) (PSS) and Au NRs.
  • Characterization using UV-vis absorbance spectroscopy and atomic force microscopy (AFM).

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Last Updated: May 2, 2026

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  • Electrochemical studies using potassium ferricyanide and cytochrome C as molecular probes.

    • Main Results:

    • Film morphology and plasmonic features depend on the anchoring polyelectrolyte, number of layers, and NR assembly.
    • Successful immobilization of Au NRs was achieved, creating nanostructured architectures.
    • Charge transport through the NR multilayer was evaluated, indicating potential for electrochemical applications.

    Conclusions:

    • LbL assembly provides control over Au NR film structure and plasmonic properties.
    • The fabricated Au NR films exhibit promising electrochemical activity.
    • These nanostructured films are suitable for applications in (bio)chemical sensing.