Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation
The ability to impart discrete surface chemistry to the inside and outside of mesoporous silicon is of great importance for a range of biomedical applications, from selective (bio)sensing to tissue-specific drug delivery. Here we present a generic strategy toward achieving depth-resolved functionali...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/41795 |
| _version_ | 1848756242937282560 |
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| author | Guan, B. Ciampi, Simone Luais, E. James, M. Reece, P. Gooding, J. |
| author_facet | Guan, B. Ciampi, Simone Luais, E. James, M. Reece, P. Gooding, J. |
| author_sort | Guan, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The ability to impart discrete surface chemistry to the inside and outside of mesoporous silicon is of great importance for a range of biomedical applications, from selective (bio)sensing to tissue-specific drug delivery. Here we present a generic strategy toward achieving depth-resolved functionalization of the external and internal porous surfaces by a simple change in the wavelength of the light being used to promote surface chemical reactions. UV-assisted hydrosilylation, limited by the penetration depth of UV light, is used to decorate the outside of the mesoporous structure with carboxylic acid molecules, and white light illumination triggers the attachment of dialkyne molecules to the inner porous matrix. |
| first_indexed | 2025-11-14T09:09:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-41795 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:09:06Z |
| publishDate | 2012 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-417952017-09-13T14:19:37Z Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation Guan, B. Ciampi, Simone Luais, E. James, M. Reece, P. Gooding, J. The ability to impart discrete surface chemistry to the inside and outside of mesoporous silicon is of great importance for a range of biomedical applications, from selective (bio)sensing to tissue-specific drug delivery. Here we present a generic strategy toward achieving depth-resolved functionalization of the external and internal porous surfaces by a simple change in the wavelength of the light being used to promote surface chemical reactions. UV-assisted hydrosilylation, limited by the penetration depth of UV light, is used to decorate the outside of the mesoporous structure with carboxylic acid molecules, and white light illumination triggers the attachment of dialkyne molecules to the inner porous matrix. 2012 Journal Article http://hdl.handle.net/20.500.11937/41795 10.1021/la303649u American Chemical Society restricted |
| spellingShingle | Guan, B. Ciampi, Simone Luais, E. James, M. Reece, P. Gooding, J. Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title | Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title_full | Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title_fullStr | Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title_full_unstemmed | Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title_short | Depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| title_sort | depth-resolved chemical modification of porous silicon by wavelength-tuned irradiation |
| url | http://hdl.handle.net/20.500.11937/41795 |