ERIC Number: EJ931537
Record Type: Journal
Publication Date: 2011-May
Pages: 12
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0143-0807
EISSN: N/A
Development of an Electronic Nose Sensing Platform for Undergraduate Education in Nanotechnology
Russo, Daniel V.; Burek, Michael J.; Iutzi, Ryan M.; Mracek, James A.; Hesjedal, Thorsten
European Journal of Physics, v32 n3 p675-686 May 2011
The teaching of the different aspects of a sensor system, with a focus on the involved nanotechnology, is a challenging, yet important task. We present the development of an electronic nose system that utilizes a nanoscale amperometric sensing mechanism for gas mixtures. The fabrication of the system makes use of a basic microfabrication facility, as well as an undergraduate chemistry laboratory for material synthesis and preparation. The sensing device consists of an array of cross-reactive sensors composed of metal-oxide semiconducting nanoparticles. Each sensor in the array produces a unique response in the presence of a target gas, allowing the sensor to determine the identity and concentration of multiple gases in a mixture. The educational aspects include microheater simulation and fabrication, design and fabrication of interdigitated electrodes, development of interfacing circuitry and software, development and calibration of a sensory array, sol-gel processing of nanoparticle films and their characterization, and details of the fundamental chemical sensing mechanism. (Contains 8 footnotes and 8 figures.)
Descriptors: Olfactory Perception, Manufacturing, Technology, Fuels, Molecular Structure, Undergraduate Study, Chemistry, Laboratories, Equipment, Interdisciplinary Approach, Physics
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A