Abstract
Fluorescent sensors capable of identification and quantitation of metal ions are of great importance for biological and environmental sciences. Supramolecular fluorescent sensors are designed and prepared based on the complexation of host-dye and ligand–metal ion. Two hosts, one commercially-available dye and eight ligands are used to form 16 potential three-component supramolecular sensors, which are screened to discover workable sensors. Among the workable sensors, one fluorescent sensor is capable of the identification of Cu2+ from nine other metal ions. Other suitable fluorescent sensors may be used for the quantitative analysis of metal ions in buffered solution, and metal sensing in live cells. This new analytical method provides an approach to rapidly generate sensors for different metal ions.
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