Graphene Oxide-Silver Nanoparticles in Molecularly-Imprinted Hybrid Films Enabling SERS Selective Sensing
Abstract
:1. Introduction
2. Materials and Methods
2.1. Chemicals and Materials
2.2. Preparation of Graphene oxide (GO) and Graphene Oxide-Silver Nanocomposite (GO-AgNPs)
2.3. Preparation of Molecular Imprinted (MIF) and not Imprinted (NIF) Films
2.4. Removal of the Molecular Template Rh6G
2.5. Characterization
2.6. Fourier-Transform Infrared (FTIR) Spectroscopy
2.7. Transmission Electron Microscopy (TEM)
2.8. Raman Spectroscopy
2.9. Spectroscopic Ellipsometry (SE)
2.10. Enhancement Efficiency and Molecular Selectivity of MI-G-SERS Platform
2.11. Reproducibility of the MI-G-SERS Platform
3. Results and Discussion
3.1. Molecular Imprinting and Template Removal
3.2. Raman Enhancement Performance of MI-G-SERS Sensing Platform
3.3. Reproducibility and Selectivity
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
Appendix A
Preparation of Graphene Oxide (GO)
References
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Jiang, Y.; Carboni, D.; Malfatti, L.; Innocenzi, P. Graphene Oxide-Silver Nanoparticles in Molecularly-Imprinted Hybrid Films Enabling SERS Selective Sensing. Materials 2018, 11, 1674. https://doi.org/10.3390/ma11091674
Jiang Y, Carboni D, Malfatti L, Innocenzi P. Graphene Oxide-Silver Nanoparticles in Molecularly-Imprinted Hybrid Films Enabling SERS Selective Sensing. Materials. 2018; 11(9):1674. https://doi.org/10.3390/ma11091674
Chicago/Turabian StyleJiang, Yu, Davide Carboni, Luca Malfatti, and Plinio Innocenzi. 2018. "Graphene Oxide-Silver Nanoparticles in Molecularly-Imprinted Hybrid Films Enabling SERS Selective Sensing" Materials 11, no. 9: 1674. https://doi.org/10.3390/ma11091674