Optimization and Characterization of Paper-Made Surface Enhanced Raman Scattering (SERS) Substrates with Au and Ag NPs for Quantitative Analysis
by
Silvia Dalla Marta 1, Chiara Novara 2, Fabrizio Giorgis 2, Alois Bonifacio 1,* and Valter Sergo 1
Silvia Dalla Marta 1, Chiara Novara 2, Fabrizio Giorgis 2, Alois Bonifacio 1,* and Valter Sergo 1
1
Department of Engineering and Architecture, University of Trieste, I-34127 Trieste, Italy
2
Department of Applied Science and Technology, Politecnico of Torino, I-10129 Torino, Italy
*
Author to whom correspondence should be addressed.
Materials 2017, 10(12), 1365; https://doi.org/10.3390/ma10121365
Received: 20 October 2017 / Revised: 13 November 2017 / Accepted: 24 November 2017 / Published: 28 November 2017
(This article belongs to the Special Issue SERS-Active Substrates)
In this work, we present a systematic study on solid Surface Enhanced Raman Scattering (SERS) substrates consisting of Au and Ag nanoparticles (NPs) loaded on filter paper with the dip-coating method. The aim of this work is to explore how a series of parameters (e.g., concentration of colloidal solution, different porosity of filter paper, and the presence of an aggregating agent) affects the analytical performance of paper-based SERS substrates. All the substrates developed in this study have been analyzed with two non-resonant probe molecules, 4-mercaptobenzoic acid (4-MBA) and adenine, in terms of (i) inter-sample repeatability, (ii) intra-sample repeatability, (iii) sensitivity, and (iv) overall SERS performance in terms of analyte quantification. Moreover, the issue of how to evaluate the repeatability for a solid SERS substrate is carefully discussed.
View Full-Text
Keywords:
paper; nanoparticles; SERS substrates
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
- Supplementary File 1:
Supplementary (PDF, 2492 KB)
MDPI and ACS Style
Dalla Marta, S.; Novara, C.; Giorgis, F.; Bonifacio, A.; Sergo, V. Optimization and Characterization of Paper-Made Surface Enhanced Raman Scattering (SERS) Substrates with Au and Ag NPs for Quantitative Analysis. Materials 2017, 10, 1365.
Show more citation formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
