A chemosensor showing discriminating fluorescent response for highly selective and nanomolar detection of Cu2+ and Zn2+ and its application in molecular logic gate
[Display omitted] •Receptor 3 was developed by condensation reaction.•Highly selective and sensitive detection of Cu2+ and Zn2+ in semi-aqueous system.•The detection limit of 5nM and 15nM for Cu2+ and Zn2+ ions, respectively.•Receptor 3 application in INHIBIT type logic gate. A fluorescent based rec...
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Published in | Analytica chimica acta Vol. 872; pp. 63 - 69 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Netherlands
Elsevier B.V
04.05.2015
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Subjects | |
Online Access | Get full text |
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Summary: | [Display omitted]
•Receptor 3 was developed by condensation reaction.•Highly selective and sensitive detection of Cu2+ and Zn2+ in semi-aqueous system.•The detection limit of 5nM and 15nM for Cu2+ and Zn2+ ions, respectively.•Receptor 3 application in INHIBIT type logic gate.
A fluorescent based receptor (4Z)-4-(4-diethylamino)-2-hydroxybenzylidene amino)-1,2dihydro-1,5-dimethyl-2-phenylpyrazol-3-one (receptor 3) was developed for the highly selective and sensitive detection of Cu2+ and Zn2+ in semi-aqueous system. The fluorescence of receptor 3 was enhanced and quenched, respectively, with the addition of Zn2+ and Cu2+ ions over other surveyed cations. The receptor formed host-guest complexes in 1:1 stoichiometry with the detection limit of 5nM and 15nM for Cu2+ and Zn2+ ions, respectively. Further, we have effectively utilized the two metal ions (Cu2+ and Zn2+) as chemical inputs for the manufacture of INHIBIT type logic gate at molecular level using the fluorescence responses of receptor 3 at 450nm. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0003-2670 1873-4324 |
DOI: | 10.1016/j.aca.2015.02.051 |