A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution
The development of rapid detection methods to identify mercury ions in aqueous solutions is crucial for effectively monitoring environmental contamination. Fluorescent chemical sensors offer a fast and reliable approach to detect and analyze these metal ions. In this study, a sensor utilizing aggreg...
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2025
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| Online Access: | https://hdl.handle.net/11073/26298 |
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| _version_ | 1864513443388719104 |
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| author | Radha, Remya |
| author2 | Valliyengal, Mohammed Al-Sayah, Mohammad |
| author2_role | author author |
| author_facet | Radha, Remya Valliyengal, Mohammed Al-Sayah, Mohammad |
| author_role | author |
| dc.creator.none.fl_str_mv | Radha, Remya Valliyengal, Mohammed Al-Sayah, Mohammad |
| dc.date.none.fl_str_mv | 2025-09-03T10:19:06Z 2025-09-03T10:19:06Z 2025 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Radha, R.; Valliyengal, M.S.; Al-Sayah, M.H. A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution. Chemosensors 2025, 13, 276. https://doi.org/10.3390/chemosensors13080276 2227-9040 https://hdl.handle.net/11073/26298 10.3390/chemosensors13080276 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | MDPI |
| dc.relation.none.fl_str_mv | https://doi.org/10.3390/chemosensors13080276 |
| dc.subject.none.fl_str_mv | Aggregation-induced emission AIE Fluorescent sensor Mercury Iodine |
| dc.title.none.fl_str_mv | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| dc.type.none.fl_str_mv | Peer-Reviewed Published version info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | The development of rapid detection methods to identify mercury ions in aqueous solutions is crucial for effectively monitoring environmental contamination. Fluorescent chemical sensors offer a fast and reliable approach to detect and analyze these metal ions. In this study, a sensor utilizing aggregation-induced emission (AIE) is introduced as a ’turn-on’ fluorescent sensor specifically designed for mercury ions in aqueous solutions. The sensor, based on carbazole, forms aggregates in aqueous solutions, resulting in a significant 800% enhancement of its fluorescence signal. When elemental iodine is added to the solution, the fluorescence of the aggregates is quenched by 90%. However, upon subsequent addition of mercury ions, the fluorescence is regenerated, and the intensity of the emission signal is directly proportional to the concentration of the ions across a wide concentration range. The carbazole-iodine complex acts as a fluorescent probe, enabling the detection of mercury ions in aqueous solutions. |
| format | article |
| id | aus_19389f0b277b139810c8a74b9c143e29 |
| identifier_str_mv | Radha, R.; Valliyengal, M.S.; Al-Sayah, M.H. A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution. Chemosensors 2025, 13, 276. https://doi.org/10.3390/chemosensors13080276 2227-9040 10.3390/chemosensors13080276 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/26298 |
| publishDate | 2025 |
| publisher.none.fl_str_mv | MDPI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous SolutionRadha, RemyaValliyengal, MohammedAl-Sayah, MohammadAggregation-induced emissionAIEFluorescent sensorMercuryIodineThe development of rapid detection methods to identify mercury ions in aqueous solutions is crucial for effectively monitoring environmental contamination. Fluorescent chemical sensors offer a fast and reliable approach to detect and analyze these metal ions. In this study, a sensor utilizing aggregation-induced emission (AIE) is introduced as a ’turn-on’ fluorescent sensor specifically designed for mercury ions in aqueous solutions. The sensor, based on carbazole, forms aggregates in aqueous solutions, resulting in a significant 800% enhancement of its fluorescence signal. When elemental iodine is added to the solution, the fluorescence of the aggregates is quenched by 90%. However, upon subsequent addition of mercury ions, the fluorescence is regenerated, and the intensity of the emission signal is directly proportional to the concentration of the ions across a wide concentration range. The carbazole-iodine complex acts as a fluorescent probe, enabling the detection of mercury ions in aqueous solutions.American University of SharjahMDPI2025-09-03T10:19:06Z2025-09-03T10:19:06Z2025Peer-ReviewedPublished versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRadha, R.; Valliyengal, M.S.; Al-Sayah, M.H. A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution. Chemosensors 2025, 13, 276. https://doi.org/10.3390/chemosensors130802762227-9040https://hdl.handle.net/11073/2629810.3390/chemosensors13080276en_UShttps://doi.org/10.3390/chemosensors13080276oai:repository.aus.edu:11073/262982025-09-04T11:58:16Z |
| spellingShingle | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution Radha, Remya Aggregation-induced emission AIE Fluorescent sensor Mercury Iodine |
| status_str | publishedVersion |
| title | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| title_full | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| title_fullStr | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| title_full_unstemmed | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| title_short | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| title_sort | A Carbazole-Based Aggregation-Induced Emission “Turn-On” Sensor for Mercury Ions in Aqueous Solution |
| topic | Aggregation-induced emission AIE Fluorescent sensor Mercury Iodine |
| url | https://hdl.handle.net/11073/26298 |