Suggesting New Application as a Water-soluble Colorimetric Chemosensor Using Traditional Blue Dye
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In this presentation, we report a water-soluble colorimetric chemosensor based indigo dye as a core. Water-soluble colorimetric chemosensor has the advantage that can be applied in eco-friendly solvent to detect toxic analytes. Indigo is the most well-known leuco-dye since old chemistry, so that it can have two chemical forms by reduction reaction. By applying this process to the sensing mechanism, we developed an indigo based chemosensor for detecting toxic analytes which are harmful for human. Using a novel chemosensor, we saw the indigo-based chemosensor changed to leuco-form of dye by reduction mechanism as adding the Hydrogen sulfide (H2S). Additionally, we confirmed that indigo-based chemosensor can be applied to fabric and filter paper as well as solution phase. Based on these results, there is a possibility that our developed new chemosensor can be applied in various ways to sensing dangerous materials.