Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability
We introduce a nanoparticle-mesoporous oxide thin film composite (NP-MOTF) as low-cost and straightforward sensing platforms for surface-enhanced Raman Spectroscopy (SERS). Titania, zirconia, and silica mesoporous matrices templated with Pluronics F-127 were synthesized via evaporation-induced self-...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_19448244_v6_n7_p5263_Wolosiuk |
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todo:paper_19448244_v6_n7_p5263_Wolosiuk2023-10-03T16:37:01Z Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability Wolosiuk, A. Tognalli, N.G. Martínez, E.D. Granada, M. Fuertes, M.C. Troiani, H. Bilmes, S.A. Fainstein, A. Soler-Illia, G.J.A.A. mesoporous thin films photodeposition plasmonics sensors silver nanoparticles surface-enhanced Raman spectroscopy (SERS) Mesoporous materials Molecules Nanoparticles Raman spectroscopy Self assembly Sensors Substrates Synthesis (chemical) Zirconia Mesoporous thin films Photo-deposition Plasmonics Silver nanoparticles Surface enhanced Raman spectroscopy Silver We introduce a nanoparticle-mesoporous oxide thin film composite (NP-MOTF) as low-cost and straightforward sensing platforms for surface-enhanced Raman Spectroscopy (SERS). Titania, zirconia, and silica mesoporous matrices templated with Pluronics F-127 were synthesized via evaporation-induced self-assembly and loaded with homogeneously dispersed Ag nanoparticles by soft reduction or photoreduction. Both methods give rise to uniform and reproducible Raman signals using 4-mercaptopyridine as a probe molecule. Details on stability and reproducibility of the Raman enhancement are discussed. Extensions in the design of these composite structures were explored including detection of nonthiolated molecules, such as rhodamine 6-G or salicylic acid, patterning techniques for locating the enhancement regions and bilayered mesoporous structures to provide additional control on the environment, and potential size-selective filtration. These inorganic oxide-metal composites stand as extremely simple, reproducible, and versatile platforms for Raman spectroscopy analysis. © 2014 American Chemical Society. Fil:Soler-Illia, G.J.A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19448244_v6_n7_p5263_Wolosiuk |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
mesoporous thin films photodeposition plasmonics sensors silver nanoparticles surface-enhanced Raman spectroscopy (SERS) Mesoporous materials Molecules Nanoparticles Raman spectroscopy Self assembly Sensors Substrates Synthesis (chemical) Zirconia Mesoporous thin films Photo-deposition Plasmonics Silver nanoparticles Surface enhanced Raman spectroscopy Silver |
| spellingShingle |
mesoporous thin films photodeposition plasmonics sensors silver nanoparticles surface-enhanced Raman spectroscopy (SERS) Mesoporous materials Molecules Nanoparticles Raman spectroscopy Self assembly Sensors Substrates Synthesis (chemical) Zirconia Mesoporous thin films Photo-deposition Plasmonics Silver nanoparticles Surface enhanced Raman spectroscopy Silver Wolosiuk, A. Tognalli, N.G. Martínez, E.D. Granada, M. Fuertes, M.C. Troiani, H. Bilmes, S.A. Fainstein, A. Soler-Illia, G.J.A.A. Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| topic_facet |
mesoporous thin films photodeposition plasmonics sensors silver nanoparticles surface-enhanced Raman spectroscopy (SERS) Mesoporous materials Molecules Nanoparticles Raman spectroscopy Self assembly Sensors Substrates Synthesis (chemical) Zirconia Mesoporous thin films Photo-deposition Plasmonics Silver nanoparticles Surface enhanced Raman spectroscopy Silver |
| description |
We introduce a nanoparticle-mesoporous oxide thin film composite (NP-MOTF) as low-cost and straightforward sensing platforms for surface-enhanced Raman Spectroscopy (SERS). Titania, zirconia, and silica mesoporous matrices templated with Pluronics F-127 were synthesized via evaporation-induced self-assembly and loaded with homogeneously dispersed Ag nanoparticles by soft reduction or photoreduction. Both methods give rise to uniform and reproducible Raman signals using 4-mercaptopyridine as a probe molecule. Details on stability and reproducibility of the Raman enhancement are discussed. Extensions in the design of these composite structures were explored including detection of nonthiolated molecules, such as rhodamine 6-G or salicylic acid, patterning techniques for locating the enhancement regions and bilayered mesoporous structures to provide additional control on the environment, and potential size-selective filtration. These inorganic oxide-metal composites stand as extremely simple, reproducible, and versatile platforms for Raman spectroscopy analysis. © 2014 American Chemical Society. |
| format |
JOUR |
| author |
Wolosiuk, A. Tognalli, N.G. Martínez, E.D. Granada, M. Fuertes, M.C. Troiani, H. Bilmes, S.A. Fainstein, A. Soler-Illia, G.J.A.A. |
| author_facet |
Wolosiuk, A. Tognalli, N.G. Martínez, E.D. Granada, M. Fuertes, M.C. Troiani, H. Bilmes, S.A. Fainstein, A. Soler-Illia, G.J.A.A. |
| author_sort |
Wolosiuk, A. |
| title |
Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| title_short |
Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| title_full |
Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| title_fullStr |
Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| title_full_unstemmed |
Silver nanoparticle-mesoporous oxide nanocomposite thin films: A platform for spatially homogeneous SERS-active substrates with enhanced stability |
| title_sort |
silver nanoparticle-mesoporous oxide nanocomposite thin films: a platform for spatially homogeneous sers-active substrates with enhanced stability |
| url |
http://hdl.handle.net/20.500.12110/paper_19448244_v6_n7_p5263_Wolosiuk |
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