Bio-sniffer and sniff-cam

Takahiro Arakawa, Koji Toma, Kohji Mitsubayashi

Research output: Chapter in Book/Report/Conference proceedingChapter


In this chapter, we would like to introduce a bio-sniffer and a sniff-cam for monitoring of human volatiles, such as exhaled breath and skin gas. There are various volatile organic components (VOCs) related to metabolism and diseases. We focused enzyme-based biochemical gas sensors, which we called the «bio-sniffer, » for gaseous components. Hence, highly sensitive and highly selective bio-sniffers utilizing enzyme specificity have been developed and demonstrated in biomedical and health care applications as biomarkers of related diseases. In addition, on the basis of the bio-sniffer, we have developed a novel imaging system «sniff-cam» for various VOCs, which can image distribution and concentration of gaseous components. This system has the advantages of monitoring spatiotemporal information, which is emitted VOCs from human breath and skin surface.

Original languageEnglish
Title of host publicationChemical, Gas, and Biosensors for Internet of Things and Related Applications
Number of pages18
ISBN (Electronic)9780128154090
Publication statusPublished - 2019 Jan 1
Externally publishedYes


  • Bio-sniffer
  • Biochemical gas sensor
  • Biosensor
  • Enzyme
  • Human volatile
  • Imaging system
  • Sniff-cam

ASJC Scopus subject areas

  • Chemistry(all)


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