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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Baruah, Upama Gogoi, Neelam Majumdar, Gitanjali Chowdhury, Devasish |
| Description | Country affiliation: India Author Affiliation: Baruah U ( Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India.); Gogoi N ( Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India.); Majumdar G ( Department of Chemistry, Assam Engineering College, Jalukbari, Guwahati 781013, India. Electronic address: gitanjalic@gmail.com.); Chowdhury D ( Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, India. Electronic address: devasish@iasst.gov.in.) |
| Abstract | In this work we have designed a novel system based on carbon dots prepared from chitosan gel capped with ß-cyclodextrin and calix[4]arene-25,26,27,28-tetrol for sensitive and selective detection of fluoride ions in aqueous media. Fluorescent carbon dots prepared from chitosan gel when capped with ß-cyclodextrin and calix[4]arene-25,26,27,28-tetrol results in quenching of its fluorescence intensity. Introduction of F(-) ions to carbon dots capped with ß-cyclodextrin and calix[4]arene-25,26,27,28-tetrol system results in enhancement and restoration of fluorescence intensity leading to detection of F(-) ion. Minimum detection limit was determined to be â¼6.6 µM. The detection is selective as with other halide ions i.e. Cl(-), Br(-) and I(-) and hydroxyl ion (OH(-)), there is observed decrease of fluorescence intensity. A possible mechanism to justify the observation is also discussed in the paper. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 117 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-03-06 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Calixarenes Chemistry Fluorides Phenols Beta-cyclodextrins Carbon Chitosan Fatty Acids, Unsaturated Gels Limit Of Detection Spectrometry, Fluorescence Methods Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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