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

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...

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Detalles Bibliográficos
Autores principales: Pannico, Marianna, Rea, Ilaria, Chandrasekaran, Soundarrajan, Musto, Pellegrino, Voelcker, Nicolas H., De Stefano, Luca
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4927532/
https://www.ncbi.nlm.nih.gov/pubmed/27356562
http://dx.doi.org/10.1186/s11671-016-1539-x
Descripción
Sumario: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 10(5) is obtained.

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