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Published in: Journal of Nanoparticle Research 10/2020

01-10-2020 | Research paper

Sandwich Au/SMSiO2/Ag hybrid substrate: synthesis, characterization, and surface-enhanced Raman scattering performance

Authors: Zhiqiang Niu, Hongmei Liu, Ying Chen, Chenjie Gu, Ziqi Zhao, Tao Jiang

Published in: Journal of Nanoparticle Research | Issue 10/2020

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Abstract

Surface-enhanced Raman scattering (SERS) has been considered a high sensitivity, specificity, and ultra-fast analytical technique in molecular fingerprint recognition. Herein, a kind of sandwich Au/“star-like” mesoporous SiO2/Ag (Au/MSiO2/Ag) hybrid nanostructure was developed by implementing the electrostatic adsorption and magnetron sputtering technology for SERS application. In the experiment, the decoration density of the MSiO2/Ag nanostructure was conveniently adjusted through tuning the washing times of the silicon wafer in ethanol. The prepared substrate with the optimal geometry structure exhibited an enhancement factor (EF) of 9.2 × 105, a limit of detection (LOD) of 5 × 10−5 M, and a low relative standard deviation value of 5.02%. In the end, the obtained hybrid SERS substrate was used to detect nitrofurazone and an excellent LOD of 1 ppm was achieved. Overall, our novel sandwich Au/MSiO2/Ag hybrid SERS substrate provides a rapid and accurate way of monitoring ultra-low trace antibiotics, which can significantly promote food safety.

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Appendix
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Metadata
Title
Sandwich Au/SMSiO2/Ag hybrid substrate: synthesis, characterization, and surface-enhanced Raman scattering performance
Authors
Zhiqiang Niu
Hongmei Liu
Ying Chen
Chenjie Gu
Ziqi Zhao
Tao Jiang
Publication date
01-10-2020
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 10/2020
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-020-05066-4

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