An ICT based "turn on/off" quinoline armed calix[4]arene fluoroionophore: its sensing efficiency towards fluoride from waste water and Zn2+ from blood serumElectronic supplementary information (ESI) available: Materials and methods, synthesis procedure, UV-spectra, real sample graph, real sample analysis result table, selectivity plot by emission spectra, and pH study graph. See DOI: 10.1039/c2an36247c

A novel structurally simple calix[4]arene appended 8-amidoquinoline linked conjugate was synthesized and has been used as a turn-on fluorescence probe for Zn 2+ and turn off fluorescence probe for F − . Moreover, this probe has been applied for Zn 2+ detection in blood serum upto 8.7 μM and fluoride detection upto 22 nM in waste water samples, using emission spectra. A novel structurally simple calix[4]arene appended 8-amidoquinoline linked conjugate was synthesized which is used as turn-on fluorescence probe for Zn 2+ and turn off for F − .