Graphene oxide / plasmon nanoparticles bilayers for optimized SERS detection

M. Banchelli; M. de Angelis; R. Pini; B. Tiribilli; G. Caminati; P. Matteini

doi:10.1117/12.2214623

22 April 2016 Graphene oxide / plasmon nanoparticles bilayers for optimized SERS detection

M. Banchelli, M. de Angelis, R. Pini, B. Tiribilli, G. Caminati, P. Matteini

Proceedings Volume 9725, Frontiers in Biological Detection: From Nanosensors to Systems VIII; 97250Q (2016) https://doi.org/10.1117/12.2214623
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

We engineered an effective GO/Ag substrate with a highly controlled and uniform bilayer structure. The substrate was obtained by fine-tuning in the Ag nanocubes (AgNCs) self-assembly, followed by a controlled adsorption of GO sheets on the silver layer. Here the GO coating supplies the signal with additional amplification. The developed GO/AgNCs assemblies show a highly uniform signal distribution, which is ascribed to a homogeneous and soft arrangement of GO sheets over the AgNCs surface. The above characteristics make the GO/AgNCs substrate a reliable tool for detecting different compounds ranging from small molecules to complex biomolecules.

Citation Download Citation

M. Banchelli, M. de Angelis, R. Pini, B. Tiribilli, G. Caminati, and P. Matteini "Graphene oxide / plasmon nanoparticles bilayers for optimized SERS detection ", Proc. SPIE 9725, Frontiers in Biological Detection: From Nanosensors to Systems VIII, 97250Q (22 April 2016); https://doi.org/10.1117/12.2214623

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KEYWORDS

Silver

Magnesium

Nanoparticles

Graphene

Raman spectroscopy

Oxides

Adsorption

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