Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase
We detail our efforts toward the selective detection of cyclic ketones, e.g. cyclohexanone, a component of plasticized explosives. Thin films comprised of a conjugated polymer are used to amplify the emission of an emissive receptor via energy transfer. We propose that the energy transfer is dominat...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Chemical Society (ACS)
2012
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| Online Access: | http://hdl.handle.net/1721.1/74237 https://orcid.org/0000-0001-8906-2344 |
| _version_ | 1826195463270825984 |
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| author | Cox, Jason R. Swager, Timothy M Mueller, Peter |
| author2 | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies |
| author_facet | Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Cox, Jason R. Swager, Timothy M Mueller, Peter |
| author_sort | Cox, Jason R. |
| collection | MIT |
| description | We detail our efforts toward the selective detection of cyclic ketones, e.g. cyclohexanone, a component of plasticized explosives. Thin films comprised of a conjugated polymer are used to amplify the emission of an emissive receptor via energy transfer. We propose that the energy transfer is dominated by an electron-exchange mechanism to an upper excited state of the fluorophore followed by relaxation and emission to account for the efficient energy transfer in the absence of appreciable spectral overlap. Exposure to cyclic ketones results in a ratiometric fluorescence response. The thin films show orthogonal responses when exposed to cyclic ketones versus acyclic ketones. We demonstrate that the exquisite selectivity is the result of a subtle balance between receptor design and the partition coefficient of molecules into the polymer matrix. |
| first_indexed | 2024-09-23T10:13:04Z |
| format | Article |
| id | mit-1721.1/74237 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:13:04Z |
| publishDate | 2012 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/742372022-09-26T16:30:16Z Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase Cox, Jason R. Swager, Timothy M Mueller, Peter Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Chemistry Swager, Timothy Manning Swager, Timothy Manning Cox, Jason R. Muller, Peter We detail our efforts toward the selective detection of cyclic ketones, e.g. cyclohexanone, a component of plasticized explosives. Thin films comprised of a conjugated polymer are used to amplify the emission of an emissive receptor via energy transfer. We propose that the energy transfer is dominated by an electron-exchange mechanism to an upper excited state of the fluorophore followed by relaxation and emission to account for the efficient energy transfer in the absence of appreciable spectral overlap. Exposure to cyclic ketones results in a ratiometric fluorescence response. The thin films show orthogonal responses when exposed to cyclic ketones versus acyclic ketones. We demonstrate that the exquisite selectivity is the result of a subtle balance between receptor design and the partition coefficient of molecules into the polymer matrix. United States. Army Research Office Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies National Science Foundation (U.S.) (Grant CHE-0946721) 2012-10-24T18:59:31Z 2012-10-24T18:59:31Z 2011-08 2011-03 Article http://purl.org/eprint/type/JournalArticle 0002-7863 1520-5126 http://hdl.handle.net/1721.1/74237 Cox, Jason R., Peter Müller, and Timothy M. Swager. “Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase.” Journal of the American Chemical Society 133.33 (2011): 12910–12913. https://orcid.org/0000-0001-8906-2344 en_US http://dx.doi.org/ 10.1021/ja202277h Journal of the American Chemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Prof. Swager via Erja Kajosalo |
| spellingShingle | Cox, Jason R. Swager, Timothy M Mueller, Peter Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title | Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title_full | Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title_fullStr | Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title_full_unstemmed | Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title_short | Interrupted Energy Transfer: Highly Selective Detection of Cyclic Ketones in the Vapor Phase |
| title_sort | interrupted energy transfer highly selective detection of cyclic ketones in the vapor phase |
| url | http://hdl.handle.net/1721.1/74237 https://orcid.org/0000-0001-8906-2344 |
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