Dual-mode semisquaraine-based sensor for selective detection of Hg2+ in a micellar medium

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Title:	Dual-mode semisquaraine-based sensor for selective detection of Hg2+ in a micellar medium
Authors:	Rekha, R A Jyothish, K Ramaiah, D
Keywords:	Atomic absorption spectrometry Squaraine dyes Photodynamic therapy Fluorescent sensors Mercuric ion Chemodosimeter Cytotoxicity
Issue Date:	2007
Publisher:	American Chemical Society
Citation:	Organic Letters 9(1):121-124;4 Jan 2007
Abstract:	A novel chemosensor based on semisquaraine dye (SSQ) for selective detection of Hg2+ is described. SSQ is obtained in quantitative yields from the reaction between squaric acid and 6-ethoxy-2-quinaldinium iodide. SSQ in combination with surfactant shows a dual chromogenic and fluorogenic response selectively toward Hg2+ as compared to Li+, Na+, K+, Ag+, Ca2+, Mg2+, Zn2+, Pb2+, Cd2+, Cu2+, and Fe3+ due to the soft acid nature and size of the mercuric ion.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/1614
ISSN:	1523-7060
Appears in Collections:	2007

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