Colorimetric sensor arrays for molecular recognition

Kenneth S. Suslick, Neal A. Rakow, Avijit Sen

Research output: Contribution to journalArticlepeer-review


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. Graphical Abstract.

Original languageEnglish (US)
Pages (from-to)11133-11138
Number of pages6
Issue number49
StatePublished - Nov 29 2004


  • Dyes
  • Electronic nose
  • Metalloporphyrins
  • Sensors
  • VOC
  • Volatile organic compounds

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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