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Sensors 2016, 16(7), 947;

Electronic Noses for Well-Being: Breath Analysis and Energy Expenditure

School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
Author to whom correspondence should be addressed.
Academic Editor: Carmen Horrillo Güemes
Received: 22 April 2016 / Revised: 7 June 2016 / Accepted: 17 June 2016 / Published: 23 June 2016
(This article belongs to the Special Issue E-noses: Sensors and Applications)
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The wealth of information concealed in a single human breath has been of interest for many years, promising not only disease detection, but also the monitoring of our general well-being. Recent developments in the fields of nano-sensor arrays and MEMS have enabled once bulky artificial olfactory sensor systems, or so-called “electronic noses”, to become smaller, lower power and portable devices. At the same time, wearable health monitoring devices are now available, although reliable breath sensing equipment is somewhat missing from the market of physical, rather than chemical sensor gadgets. In this article, we report on the unprecedented rise in healthcare problems caused by an increasingly overweight population. We first review recently-developed electronic noses for the detection of diseases by the analysis of basic volatile organic compounds (VOCs). Then, we discuss the primary cause of obesity from over eating and the high calorific content of food. We present the need to measure our individual energy expenditure from our exhaled breath. Finally, we consider the future for handheld or wearable devices to measure energy expenditure; and the potential of these devices to revolutionize healthcare, both at home and in hospitals. View Full-Text
Keywords: VOC; breath analysis; energy expenditure; well-being VOC; breath analysis; energy expenditure; well-being

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Gardner, J.W.; Vincent, T.A. Electronic Noses for Well-Being: Breath Analysis and Energy Expenditure. Sensors 2016, 16, 947.

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