Journal
BIOSENSORS & BIOELECTRONICS
Volume 22, Issue 2, Pages 318-322Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2006.01.016
Keywords
bioelectronic nose; cell-based biosensor; neurochip; olfactory cell; light-addressable potentiometric sensor
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Human olfactory system can distinguish thousands of odors. In order to realize the biomimetic design of electronic nose on the principle of mammalian olfactory system, this article reports an olfactory cell-based biosensor as a real bionic technique for odorants detection. Effective cultures of olfactory receptor neurons and olfactory bulb cells have been achieved on the semiconductor chip. Using light-addressable potentiometric sensor (LAPS) as sensing chip to monitor extracellular potential of the neurons, the response under stimulations of the odorants or neurotransmitters, such as acetic acid and glutamic acid, was tested. The results demonstrate that this kind of hybrid system of LAPS and olfactory neurons, which is sensitive to odorous changes, has great potential and is promising to be used as a novel neurochip of bioelectronic nose for detecting odors. (c) 2006 Elsevier B.V. All rights reserved.
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