Cyanide induced self assembly and copper recognition in human blood serum by a new carbazole AIEE active material.

New carbazole based AIEE material is synthesized with fluoro group which shows ESIPT induced AIEE in H2O:THF (80:20, v/v). The material selectively recognizes Cu(2+) and CN(-) ions in contrasting modes with detection limits of 5 × 10(-6)Mol L(-1) and 12×10(-5)Mol L(-1) respectively and acts as a dual action chemosensor. The recognition of copper has also been observed in human serum, thus facilitating the detection of increased level of free Cu(2+) ions and its quantification in human serum.