Department of Electrical and Computer Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada; E-Mail:
Sensors (Basel). 2009;9(11):9196-215. doi: 10.3390/s91109196. Epub 2009 Nov 18.
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.
甲醛是一种挥发性有机化合物，广泛应用于纺织品、纸张、木材复合材料和家用材料。甲醛会不断从家具等人造木制品中释放出来，长期低水平暴露会对健康造成不良影响。为满足对便携式、低功耗气体检测的需求，已经开发出用于甲醛的新型微制造传感器。本文综述了近期的工作，包括用于基于金属氧化物的检测的硅微加热板、基于酶的电化学传感器和基于纳米线的传感器。本文还研究了聚合物基传感器在低温、低功耗运行方面的潜力。
