In this work, the authors explored the interaction of a suite of fluorescent zinc complexes with HS. The authors provide evidence that HS binds the zinc center of all the complexes under investigation, allowing them to possibly function as sensors by a 'coordinative-based' approach. Naked-eye color changes occur when treating the systems with HS, so the fluorescence responses are modulated by the presence of HS, which has been related to a change in the energy level and coupling of excited states through a computational study. The results show the potential of the systems to function as HS/HS colorimetric and fluorescent sensors. Paper-strip-based sensing experiments foresee the potential of using this family of complexes as chemosensors of HS in more complex biological fluids.
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| http://dx.doi.org/10.3390/s22093173 | DOI Listing |
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