22 April 2016 Graphene oxide / plasmon nanoparticles bilayers for optimized SERS detection
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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.
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M. Banchelli, M. de Angelis, R. Pini, B. Tiribilli, G. Caminati, 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); doi: 10.1117/12.2214623; https://doi.org/10.1117/12.2214623
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