Musib, D and Reena Devi, L and Raza, MK and Binita Chanu, S and Roy, M (2020) A New Thiophene-based Aggregation-induced Emission Chemosensor for Selective Detection of Zn2+ Ions and Its Turn off. In: Chemistry Letters, 49 (5). pp. 473-476.
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Abstract
A new thieno2,3-bthiophene-based fluorescent probe (L1) was synthesized and characterized for selective detection of Zn2+ ion at physiological pH. The probe exhibited remarkable �TURN-ON� emission in the presence of mobile Zn2+ ion. Q-TOF ESI mass spectral analysis and Job�s plot confirm 1:1 complex formation with the binding constant, Kb = 1.9 © 104 M11. Later the 1:1 complex aggregated into a complex structure which was evident from a remarkable enhancement of fluorescence of the probe in the presence of excess of Zn2+ ions. Disodium salt of ethylenediaminetetraacetic acid (Na2H2EDTA) resulted in the TURN-OFF fluorescence of L1:Zn2+ aggregate which led us to formulate a logic-gate circuit for potential biological and material sensing. © 2020 The Chemical Society of Japan.
| Item Type: | Journal Article |
|---|---|
| Publication: | Chemistry Letters |
| Publisher: | Chemical Society of Japan |
| Additional Information: | Copyright of this article belongs to Chemical Society of Japan |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 09 Apr 2021 11:10 |
| Last Modified: | 09 Apr 2021 11:10 |
| URI: | http://eprints.iisc.ac.in/id/eprint/65487 |
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