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Sensors 2009, 9(11), 9196-9215; doi:10.3390/s91109196

Microfabricated Formaldehyde Gas Sensors

1,* , 2
1 Department of Electrical and Computer Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada 2 Department of Materials Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada
* Author to whom correspondence should be addressed.
Received: 27 September 2009 / Revised: 6 November 2009 / Accepted: 7 November 2009 / Published: 18 November 2009
(This article belongs to the Special Issue Gas Sensors 2009)
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Formaldehyde is a volatile organic compound that is widely used in textiles, paper, wood composites, and household materials. Formaldehyde will continuously outgas from manufactured wood products such as furniture, with adverse health effects resulting from prolonged low-level exposure. New, microfabricated sensors for formaldehyde have been developed to meet the need for portable, low-power gas detection. This paper reviews recent work including silicon microhotplates for metal oxide-based detection, enzyme-based electrochemical sensors, and nanowire-based sensors. This paper also investigates the promise of polymer-based sensors for low-temperature, low-power operation.
Keywords: formaldehyde sensor; MEMS; conducting polymer sensor formaldehyde sensor; MEMS; conducting polymer sensor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Flueckiger, J.; Ko, F.K.; Cheung, K.C. Microfabricated Formaldehyde Gas Sensors. Sensors 2009, 9, 9196-9215.

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