DNA-Coated Nanosensors for Breath Analysis

A. T.Charlie Johnson, Samuel M. Khamis, George Preti, Jae Kwak, Alan Gelperin, George Preti, Alan Gelperin

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


The analysis of breath and body odors can provide valuable information relevant to disease detection, diagnosis and treatment. A variety of technical developments are being pursued to develop electronic devices intended to analyze volatile components of breath and body odors with the sensitivity, selectivity, and learning ability of high-end mammalian olfactory systems. Here, we describe a new sensor technology that has the potential to supply a large set of diverse and sensitive odorant sensors with electronic readout to provide information-rich odorant-elicited signals for analysis by pattern recognition algorithms. In addition, we demonstrate that these sensors can provide discrimination of odorant homologues consisting of aldehydes and organic acids commonly found in human breath and other body emanations over a range of concentrations.

Original languageEnglish (US)
Pages (from-to)159-166
Number of pages8
JournalIEEE Sensors Journal
Issue number1
StatePublished - Jan 2010

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering


  • Breath diagnosis
  • carbon nanotubes
  • field effect transistors
  • human odortypes
  • odor sensors
  • pattern recognition
  • pi-pi stacking


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