文摘
Odor detection is a prevalently noninvasive analytical method. To fulfill detecting odor sensitively by taking full advantage of rat's existing olfactory organs, we try using bio-hybrid sensing as pioneer. With developed brain machine interface technique, micro-electrode array is implanted into olfactory bulb to record neural activities in vivo. Acquiring data in vivo preserves integrity of rat's smell perception and bioactivity of odor-sensitive cells. Scents information recorded from olfactory bulb is decoded by maximum likelihood estimation. In this paper, we analyzed selectivity, specificity, repeatability, stability, and discrimination accuracy of sensing system in details. Results suggest that bio-hybrid sensing performs specifically, stably, and discriminates octanol, pentanal, and butyric acid with 92.67% accuracy.
