Browsing by Author "Spasyuk, D."

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    Multi-readout logic gate for selective metal ions detection in parts per billion levels
    (John Wiley & Sons, Ltd., 2016-07-18) Zenkina, O. V.; Laschuk, N. O.; Ebralidze, I. I.; Spasyuk, D.
    Optical sensors utilizing visual responses for the identification of metal ions require reliable molecular systems able to operate selectively in multicomponent solutions. Herein, we report a water-soluble terpyridyl-based ligand that demonstrates effective quantification of parts per billion to parts per million levels of Fe2+, Fe3+, Zn2+, and Ru3+. Whereas the Fe3+ and Ru3+ ions were found to bind to the ligand to form a monometallic complex, a 2:1 ligand/metal binding stoichiometry was found for the Zn2+ and Fe2+ complexes. The corresponding metal-binding events were directly translated into distinct colorimetric and spectroscopic logic outputs. Applying molecular logic (Boolean logic operations) to describe these binding events, selective discrimination between the ions was demonstrated