Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore
A novel fluorescent polymer with pendant triazolyl coumarin units was synthesized through radical polymerization. The polymer showed reasonable sensitivity and selectivity towards Cu2+ in acetonitrile in comparison to other tested metal ions with a significant quenching effect on fluorescence and bl...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/17/9/1980 |
| _version_ | 1811278772688650240 |
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| author | Jean Marie Vianney Ngororabanga Jacolien Du Plessis Neliswa Mama |
| author_facet | Jean Marie Vianney Ngororabanga Jacolien Du Plessis Neliswa Mama |
| author_sort | Jean Marie Vianney Ngororabanga |
| collection | DOAJ |
| description | A novel fluorescent polymer with pendant triazolyl coumarin units was synthesized through radical polymerization. The polymer showed reasonable sensitivity and selectivity towards Cu2+ in acetonitrile in comparison to other tested metal ions with a significant quenching effect on fluorescence and blue shifting in the range of 20 nm. The blue shift was assigned to the conformation changes of the diethylamino group from the coumarin moiety which led to planarization of the triazolyl coumarin units. The possible binding modes for Cu2+ towards the polymer were determined through the comparison of the emission responses of the polymer, starting vinyl monomer and reference compound, and the triazole ring was identified as one of the possible binding sites for Cu2+. The detection limits of the polymer and vinyl monomer towards Cu2+ were determined from fluorescence titration experiments and a higher sensitivity (35 times) was observed for the polymer compared with its starting monomer. |
| first_indexed | 2024-04-13T00:43:00Z |
| format | Article |
| id | doaj.art-2b26c0516b3b45e4aa5f6a11154c6bab |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T00:43:00Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2b26c0516b3b45e4aa5f6a11154c6bab2022-12-22T03:10:06ZengMDPI AGSensors1424-82202017-08-01179198010.3390/s17091980s17091980Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based FluorophoreJean Marie Vianney Ngororabanga0Jacolien Du Plessis1Neliswa Mama2Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South AfricaDepartment of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South AfricaDepartment of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South AfricaA novel fluorescent polymer with pendant triazolyl coumarin units was synthesized through radical polymerization. The polymer showed reasonable sensitivity and selectivity towards Cu2+ in acetonitrile in comparison to other tested metal ions with a significant quenching effect on fluorescence and blue shifting in the range of 20 nm. The blue shift was assigned to the conformation changes of the diethylamino group from the coumarin moiety which led to planarization of the triazolyl coumarin units. The possible binding modes for Cu2+ towards the polymer were determined through the comparison of the emission responses of the polymer, starting vinyl monomer and reference compound, and the triazole ring was identified as one of the possible binding sites for Cu2+. The detection limits of the polymer and vinyl monomer towards Cu2+ were determined from fluorescence titration experiments and a higher sensitivity (35 times) was observed for the polymer compared with its starting monomer.https://www.mdpi.com/1424-8220/17/9/1980pendant grouptriazolyl coumarinchemosensoraggregateplanarization |
| spellingShingle | Jean Marie Vianney Ngororabanga Jacolien Du Plessis Neliswa Mama Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore Sensors pendant group triazolyl coumarin chemosensor aggregate planarization |
| title | Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore |
| title_full | Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore |
| title_fullStr | Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore |
| title_full_unstemmed | Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore |
| title_short | Fluorescent Polymer Incorporating Triazolyl Coumarin Units for Cu2+ Detection via Planarization of Ict-Based Fluorophore |
| title_sort | fluorescent polymer incorporating triazolyl coumarin units for cu2 detection via planarization of ict based fluorophore |
| topic | pendant group triazolyl coumarin chemosensor aggregate planarization |
| url | https://www.mdpi.com/1424-8220/17/9/1980 |
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