A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters
Herein, mesoporous silicon (PSi) is configured as a single sensing device that has dual readouts; as a photonic crystal sensor in a Rugate filter configuration, and as a high surface area porous electrode. The as-prepared PSi is chemically modified to provide it with stability in aqueous media and t...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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R S C Publications
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/43237 |
| _version_ | 1848756634842562560 |
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| author | Ciampi, S. Guan, B. Darwish, Nadim Zhu, Y. Reece, P. Justin Gooding, J. |
| author_facet | Ciampi, S. Guan, B. Darwish, Nadim Zhu, Y. Reece, P. Justin Gooding, J. |
| author_sort | Ciampi, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Herein, mesoporous silicon (PSi) is configured as a single sensing device that has dual readouts; as a photonic crystal sensor in a Rugate filter configuration, and as a high surface area porous electrode. The as-prepared PSi is chemically modified to provide it with stability in aqueous media and to allow for the subsequent coupling of chemical species, such as via Cu(i)-catalyzed cycloaddition reactions between 1-alkynes and azides ("click" reactions). The utility of the bimodal capabilities of the PSi sensor for monitoring surface coupling procedures is demonstrated by the covalent coupling of a ferrocene derivative, as well as by demonstrating ligand-exchange reactions (LER) at the PSi surface. Both types of reactions were monitored through optical reflectivity measurements, as well as electrochemically via the oxidation/reduction of the surface tethered redox species. |
| first_indexed | 2025-11-14T09:15:19Z |
| format | Journal Article |
| id | curtin-20.500.11937-43237 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:15:19Z |
| publishDate | 2012 |
| publisher | R S C Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-432372018-03-29T09:07:47Z A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters Ciampi, S. Guan, B. Darwish, Nadim Zhu, Y. Reece, P. Justin Gooding, J. Herein, mesoporous silicon (PSi) is configured as a single sensing device that has dual readouts; as a photonic crystal sensor in a Rugate filter configuration, and as a high surface area porous electrode. The as-prepared PSi is chemically modified to provide it with stability in aqueous media and to allow for the subsequent coupling of chemical species, such as via Cu(i)-catalyzed cycloaddition reactions between 1-alkynes and azides ("click" reactions). The utility of the bimodal capabilities of the PSi sensor for monitoring surface coupling procedures is demonstrated by the covalent coupling of a ferrocene derivative, as well as by demonstrating ligand-exchange reactions (LER) at the PSi surface. Both types of reactions were monitored through optical reflectivity measurements, as well as electrochemically via the oxidation/reduction of the surface tethered redox species. 2012 Journal Article http://hdl.handle.net/20.500.11937/43237 10.1039/c2cp43461j R S C Publications restricted |
| spellingShingle | Ciampi, S. Guan, B. Darwish, Nadim Zhu, Y. Reece, P. Justin Gooding, J. A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title | A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title_full | A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title_fullStr | A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title_full_unstemmed | A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title_short | A multimodal optical and electrochemical device for monitoring surface reactions: Redox active surfaces in porous silicon Rugate filters |
| title_sort | multimodal optical and electrochemical device for monitoring surface reactions: redox active surfaces in porous silicon rugate filters |
| url | http://hdl.handle.net/20.500.11937/43237 |