A wearable sensing system for assessment of exposures to environmental volatile organic compounds

Cheng Chen, Francis Tsow, Xiaojun Xian, Erica Forzani, Nongjian Tao, Raymond Tsui

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Scopus citations


A portable chemical sensing system that integrates sample preconcentration, separation and detection as well as wireless communication functionalities into a compact, wearable format can provide continuous and real-time monitoring of volatile organic compounds in the environment. The sensing modality relies on tuning forks coated with molecularly imprinted polymers that, in conjunction with sample preconcentration, offer selective detection down to parts-per-billion levels. The use of capillary columns allows individual components of complex mixtures to be detected at these highly sensitive levels even in the presence of interferents. The wireless capability facilitates the utilization of a paired smartphone as the user interface as well as a vehicle for additional processing and storage of the measured data. This integrated approach offers a cost-effective and reliable platform for personal exposure assessment.

Original languageEnglish (US)
Title of host publicationMobile Health Technologies: Methods and Protocols
PublisherSpringer New York
Number of pages11
ISBN (Print)9781493921720, 9781493921713
StatePublished - Jan 27 2015


  • Chemical sensors
  • Environmental monitoring
  • Personal exposure assessment
  • Volatile organic compounds
  • Wearable detection system
  • Wireless sensing

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology


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