A Benzothiazole-Based Fluorescence Turn-on Sensor for Copper(II)
| Autor: | Donghwan Choi, Gyeongjin Kim, Cheal Kim |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Sociology and Political Science 010405 organic chemistry Clinical Biochemistry chemistry.chemical_element Binding ratio 010402 general chemistry 01 natural sciences Biochemistry Fluorescence Copper 0104 chemical sciences Job plot Turn (biochemistry) Clinical Psychology chemistry.chemical_compound Crystallography Benzothiazole chemistry Law Spectroscopy Social Sciences (miscellaneous) |
| Zdroj: | Journal of fluorescence. 31(4) |
| ISSN: | 1573-4994 |
| Popis: | A new benzothiazole-based chemosensor BTN (1-((Z)-(((E)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)naphthalen-2-ol) was synthesized for the detection of Cu2+. BTN could detect Cu2+ with “off-on” fluorescent response from colorless to yellow irrespective of presence of other cations. Limit of detection for Cu2+ was determined to be 3.3 µM. Binding ratio of BTN and Cu2+ turned out to be a 1:1 with the analysis of Job plot and ESI-MS. Sensing feature of Cu2+ by BTN was explained with theoretical calculations, which might be owing to internal charge transfer and chelation-enhanced fluorescence processes. |
| Databáze: | OpenAIRE |
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