Electroless Gold-Modified Diatoms as Surface-Enhanced Raman Scattering Supports

Marianna Pannico, Ilaria Rea, Soundarrajan Chandrasekaran, Pellegrino Musto, Nicolas H. Voelcker, Luca De Stefano

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

Porous biosilica from diatom frustules is well known for its peculiar optical and mechanical properties. In this work, gold-coated diatom frustules are used as low-cost, ready available, functional support for surface-enhanced Raman scattering. Due to the morphology of the nanostructured surface and the smoothness of gold deposition via an electroless process, an enhancement factor for the p-mercaptoaniline Raman signal of the order of 105 is obtained.

Original languageEnglish
Article number315
Number of pages6
JournalNanoscale Research Letters
Volume11
Issue number1
DOIs
Publication statusPublished - 1 Dec 2016
Externally publishedYes

Keywords

  • Diatoms
  • p-Mercaptoaniline
  • SERS

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