Optical sensor arrays for chemical sensing: The optoelectronic nose

Jon R. Askim, Morteza Mahmoudi, Kenneth S. Suslick

Research output: Contribution to journalArticlepeer-review


A comprehensive review is presented on the development and state of the art of colorimetric and fluorometric sensor arrays. Optical arrays based on chemoresponsive colorants (dyes and nanoporous pigments) probe the chemical reactivity of analytes, rather than their physical properties. This provides a high dimensionality to chemical sensing that permits high sensitivity (often down to ppb levels), impressive discrimination among very similar analytes and exquisite fingerprinting of extremely similar mixtures over a wide range of analyte types, both in the gas and liquid phases.

Original languageEnglish (US)
Pages (from-to)8649-8682
Number of pages34
JournalChemical Society Reviews
Issue number22
StatePublished - Oct 21 2013

ASJC Scopus subject areas

  • Chemistry(all)


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