Novel chemical sensor for detection Ca(II) ions based on ferutinin

A novel optical chemical sensor was developed for Ca(II) ions detection. The chemosensor is designed based on jaeschkeanadiol p-hydroxyben-zoate, Ferutinin (Fh-25). The chemosensor probe shows high selectivity, sensitivity and reversibility depending on their fluorescence properties and recognition abilities within very low detection (LOD 1.5 nM) in physiological pH = 7.4.222