A multifunctional fluorescent and colorimetric receptor 1 ((E) N'-((8-hydroxy-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)methylene)benzohydrazide) for the detection of both Al3+ and CN- in aqueous solution has been developed. Receptor 1 exhibited an excellent selective fluorescence response toward Al3+. The sensitivity of fluorescent based assay (0.193 μM) for Al3+ is far below the World Health Organization (WHO) guideline of the drinking water (7.41 μM). In addition, receptor 1 showed excellent detection ability at a wide pH range of 4-10 and also in living cells. Moreover, the receptor 1 showed a highly selective colorimetric response to CN- by changing its color from colorless to yellow immediately without any interference by other anions.

New multifunctional Schiff base as fluorescence sensor for Al3+ and colorimetric sensor for CN- in aqueous media: an application to bioimaging

249th National Meeting (2015)

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