Novel Turn-On Fluorescent Sensors with Mega Stokes Shifts for Dual Detection of Al3+ and Zn2+
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Author list: Boonkitpatarakul K., Wang J., Niamnont N., Liu B., McDonald L., Pang Y., Sukwattanasinitt M.
Publisher: American Chemical Society
Publication year: 2016
Volume number: 1
Issue number: 2
Start page: 144
End page: 150
Number of pages: 7
ISSN: 2379-3694
eISSN: 2379-3694
Languages: English-Great Britain (EN-GB)
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Abstract
A series of bishydrazide compounds have been developed for selective turn-on detection of Al3+ cation, based on metal chelation-enhanced fluorescence (CHEF) effects that inhibit the nonradiative PET and ESIPT processes. In aqueous solution, Al3+ selectively induces strong fluorescence of these compounds with large Stokes shifts up to ∼133 nm and emission colors varying from blue to orange. In the solid phase, both Al3+ and Zn2+ give apparent fluorescence which is simultaneously detected based on chromatographic separation. © 2015 American Chemical Society.
Keywords
aluminum ion, fluorescence sensor, hydrazide, paper chromatography, zinc ion
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