Analysis of Surface Acoustic Wave Propagation Velocity in Biological Function-Oriented Odor Sensor. (13th March 2018)

• Record Type: Journal Article
• Authors: Yang, Yuxia; Nagano, Koji; , Chaoluomeng; Iwasa, Tatsuo; Fukuda, Hisashi
• Other Names: Evoy Stephane Academic Editor.
• Is Part Of: Journal of sensors. Volume 2018(2018)
• Publication Date: 2018-03-13
• Subjects: Detectors -- Periodicals; 681.205
• DOI: 10.1155/2018/8129484
• Languages: English
• ISSNs: 1687-725X

Abstract

Abstract : We describe the measurement of surface acoustic wave (SAW) velocities to identify five odorant molecules by using a SAW device system. We derive a new frequency equation for SAWs propagating in the SAW device system with Cynops pyrrhogaster lipocalin (Cp-Lip1) protein, in order to identify five odorant molecules, R-limonene (R-Lim), ethyl butyrate (Eth), 2-isobutylthiazole (Iso), benzophenone (Ben), and 2-acetylthiazole (Ace). We developed a method to identify these odorant molecules combined with the Cp-Lip1 odorant-binding protein. Our frequency equation can satisfactorily predict different odorant molecules in the Cp-Lip1 SAW device. Moreover, our data suggest that the propagation velocity of the SAWs mostly relate to the density and concentration of the Cp-Lip1 odorant molecule mixtures. At the same sample concentration, the propagation velocity depends on the density. For the same odorant molecule, the propagation velocity decreases with increasing concentration.