Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles
Novel results concerning surface-enhanced Raman scattering mediated by thiol-immobilized capped silver nanoparticles attached to a silicon Si(100) substrate are presented. The attachment of the nanoparticles is achieved by chemically modifying the surface of Si(100) in order to provide sulfhydryl gr...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2018/4127108 |
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| _version_ | 1832553546690592768 |
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| author | C. Caro F. Gámez A. P. Zaderenko |
| author_facet | C. Caro F. Gámez A. P. Zaderenko |
| author_sort | C. Caro |
| collection | DOAJ |
| description | Novel results concerning surface-enhanced Raman scattering mediated by thiol-immobilized capped silver nanoparticles attached to a silicon Si(100) substrate are presented. The attachment of the nanoparticles is achieved by chemically modifying the surface of Si(100) in order to provide sulfhydryl groups covalently linked to the substrate and then covering these surfaces with bare and polymer-capped silver nanoparticles. The modified silicon substrate, the nanoparticles, and the sensors are characterized by means of infrared and UV-vis spectroscopies and electronic microscopies. The surface-enhanced Raman scattering intensity of the new films based on polymer-capped nanoparticles is compared with that obtained with silver bare nanoparticles using rhodamine 6G as a common chromophore. These results open a new route to the design of reversible and spot-to-spot reproducible surface-enhanced Raman scattering-based sensors supported by silver nanoparticles. |
| format | Article |
| id | doaj-art-65072a8bde264075994d52ff6d4377a7 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-65072a8bde264075994d52ff6d4377a72025-02-03T05:53:48ZengWileyJournal of Spectroscopy2314-49202314-49392018-01-01201810.1155/2018/41271084127108Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped NanoparticlesC. Caro0F. Gámez1A. P. Zaderenko2Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. de Utrera Km 1, 41013 Sevilla, SpainDepartamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. de Utrera Km 1, 41013 Sevilla, SpainDepartamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. de Utrera Km 1, 41013 Sevilla, SpainNovel results concerning surface-enhanced Raman scattering mediated by thiol-immobilized capped silver nanoparticles attached to a silicon Si(100) substrate are presented. The attachment of the nanoparticles is achieved by chemically modifying the surface of Si(100) in order to provide sulfhydryl groups covalently linked to the substrate and then covering these surfaces with bare and polymer-capped silver nanoparticles. The modified silicon substrate, the nanoparticles, and the sensors are characterized by means of infrared and UV-vis spectroscopies and electronic microscopies. The surface-enhanced Raman scattering intensity of the new films based on polymer-capped nanoparticles is compared with that obtained with silver bare nanoparticles using rhodamine 6G as a common chromophore. These results open a new route to the design of reversible and spot-to-spot reproducible surface-enhanced Raman scattering-based sensors supported by silver nanoparticles.http://dx.doi.org/10.1155/2018/4127108 |
| spellingShingle | C. Caro F. Gámez A. P. Zaderenko Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles Journal of Spectroscopy |
| title | Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles |
| title_full | Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles |
| title_fullStr | Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles |
| title_full_unstemmed | Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles |
| title_short | Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles |
| title_sort | preparation of surface enhanced raman scattering substrates based on immobilized silver capped nanoparticles |
| url | http://dx.doi.org/10.1155/2018/4127108 |
| work_keys_str_mv | AT ccaro preparationofsurfaceenhancedramanscatteringsubstratesbasedonimmobilizedsilvercappednanoparticles AT fgamez preparationofsurfaceenhancedramanscatteringsubstratesbasedonimmobilizedsilvercappednanoparticles AT apzaderenko preparationofsurfaceenhancedramanscatteringsubstratesbasedonimmobilizedsilvercappednanoparticles |