Avijit Sen - Colorimetric sensor arrays for molecular recognition

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  Publication Details (including relevant citation   information):

        Author(s):         Suslick KS,         Rakow NA,         Sen A     
        Source: TETRAHEDRON    Volume:         60    Issue: 49    Pages:         11133-11138    Published:  2004       


  The development of colorimetric sensor arrays for the detection   of volatile organic compounds is reported. Using an array of   chemo-responsive dyes, enormous discriminatory power is created   in a simple device that can imaged easily with an ordinary   flat-bed scanner. High sensitivities (ppb) have been demonstrated   for the detection of biologically important analytes, including   amines, carboxylic acids, and thiols. By the proper choice of   dyes and substrate, the array can be made essentially   non-responsive to changes in humidity.

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