Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation
We presented here the findings of linear and nonlinear excitation of an optical fluorescence sensor enhanced with chitosan-based thin films coated on tapered optical fiber for detecting of dinitrobenzene solution compound. The absorbance peak of linear excitation at 441.2 nm shows a small shift to f...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/48115/ http://psasir.upm.edu.my/id/eprint/48115/1/Dinitrobenzene%20sensing%20utilizing%20chitosan-based%20thin%20films%20optical%20fluorescence%20sensors%20via%20linear%20and%20nonlinear%20excitation.pdf |
| _version_ | 1848850993607868416 |
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| author | Yusufu, Abdullahi Magaji Muhammad Noor, Ahmad Shukri Mohd Azami, Hazwani Nadirah Tamchek, Nizam Zainal Abidin, Zurina |
| author_facet | Yusufu, Abdullahi Magaji Muhammad Noor, Ahmad Shukri Mohd Azami, Hazwani Nadirah Tamchek, Nizam Zainal Abidin, Zurina |
| author_sort | Yusufu, Abdullahi Magaji |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We presented here the findings of linear and nonlinear excitation of an optical fluorescence sensor enhanced with chitosan-based thin films coated on tapered optical fiber for detecting of dinitrobenzene solution compound. The absorbance peak of linear excitation at 441.2 nm shows a small shift to from 540.8 nm to 541.3 nm when 0.003g/ml dinitrobenzene was diluted in acetone. Time resolved fluorescence resulting in decreasing of fluorescence intensities was recorded for both linear and nonlinear excitation. Both showed an agreement of quenching of fluorescence up to 30% of its initial fluorescence due to the free electron transfer from chitosan thin film to the dinitrobenzene. Nonlinear excitation gives more rapid time-resolved florescence after 4 minutes compared to 6 minutes in linear excitation. |
| first_indexed | 2025-11-15T10:15:07Z |
| format | Conference or Workshop Item |
| id | upm-48115 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:15:07Z |
| publishDate | 2015 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-481152020-03-17T07:11:33Z http://psasir.upm.edu.my/id/eprint/48115/ Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation Yusufu, Abdullahi Magaji Muhammad Noor, Ahmad Shukri Mohd Azami, Hazwani Nadirah Tamchek, Nizam Zainal Abidin, Zurina We presented here the findings of linear and nonlinear excitation of an optical fluorescence sensor enhanced with chitosan-based thin films coated on tapered optical fiber for detecting of dinitrobenzene solution compound. The absorbance peak of linear excitation at 441.2 nm shows a small shift to from 540.8 nm to 541.3 nm when 0.003g/ml dinitrobenzene was diluted in acetone. Time resolved fluorescence resulting in decreasing of fluorescence intensities was recorded for both linear and nonlinear excitation. Both showed an agreement of quenching of fluorescence up to 30% of its initial fluorescence due to the free electron transfer from chitosan thin film to the dinitrobenzene. Nonlinear excitation gives more rapid time-resolved florescence after 4 minutes compared to 6 minutes in linear excitation. IEEE 2015 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48115/1/Dinitrobenzene%20sensing%20utilizing%20chitosan-based%20thin%20films%20optical%20fluorescence%20sensors%20via%20linear%20and%20nonlinear%20excitation.pdf Yusufu, Abdullahi Magaji and Muhammad Noor, Ahmad Shukri and Mohd Azami, Hazwani Nadirah and Tamchek, Nizam and Zainal Abidin, Zurina (2015) Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation. In: 2015 9th International Conference on Sensing Technology (ICST 2015), 8-10 Dec. 2015, Auckland, New Zealand. (pp. 629-633). 10.1109/ICSensT.2015.7438474 |
| spellingShingle | Yusufu, Abdullahi Magaji Muhammad Noor, Ahmad Shukri Mohd Azami, Hazwani Nadirah Tamchek, Nizam Zainal Abidin, Zurina Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title | Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title_full | Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title_fullStr | Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title_full_unstemmed | Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title_short | Dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| title_sort | dinitrobenzene sensing utilizing chitosan-based thin films optical fluorescence sensors via linear and nonlinear excitation |
| url | http://psasir.upm.edu.my/id/eprint/48115/ http://psasir.upm.edu.my/id/eprint/48115/ http://psasir.upm.edu.my/id/eprint/48115/1/Dinitrobenzene%20sensing%20utilizing%20chitosan-based%20thin%20films%20optical%20fluorescence%20sensors%20via%20linear%20and%20nonlinear%20excitation.pdf |