Journal
BIOMEDICAL MICRODEVICES
Volume 14, Issue 6, Pages 1055-1061Publisher
SPRINGER
DOI: 10.1007/s10544-012-9705-0
Keywords
Olfactory epithelium; Microelectrode array (MEA); Bio-hybrid sensor; Cell-based biosensor; Receptor neuron
Funding
- National Natural Science Foundation of China [81027003, 81071226]
- Research on Public Welfare Technology Application Projects of Zhejiang Province, China [2011C23096]
- Zhejiang Provincial Natural Science Foundation of China [Y2100684]
- Fundamental Research Funds for the Central Universities
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Bio-hybrid systems provide an opportunity for integrating a living bio-active unit and a proper biosensing system, to employ the unique properties of the bio-active unit. The biological olfactory system can sense and identify thousands of trace odors. The purpose of this study is to combine olfactory epithelium with microelectrode array (MEA) to establish an olfactory epithelium-MEA hybrid system to record the odor-induced electrophysiological activities of the tissue. In our experiments, extracellular potential of olfactory receptor neurons in intact epithelium were measured in the presence of ethyl ether, acetic acid, butanedione, and acetone, respectively. After the odor-induced response signals were analyzed in the time and frequency domain, the temporal characteristics of response signals were extracted. We found that olfactory epithelium-MEA hybrid system can reflect the in vitro odor information of different signal characteristics and firing modes in vitro. The bio-hybrid sensing system can represent a useful instrument to sense and detect the odorant molecules with well recognizing patterns. With the development of sensor technology, bio-hybrid systems will represent emerging and promising platforms for wide applications, ranging from health care to environmental monitoring.
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