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Proceedings Paper

A taste sensor based on surface imprinted TiO2 membrane
Author(s): Wenxiang Xiao; Zhencheng Chen; Xingguo Jiang; Hongtian Zhao; Fugang Chu; Hongbin Hou
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Paper Abstract

Surface imprinted TiO2 membranes had been prepared and used as sensing membranes for basic tastes discrimination. Four basic taste molecules (citric acid, D-glucose, quinine hydrochloride and sodium L-glutamate for sour, sweet, bitter and umami respectively) were used as templates for imprinting. The sensor was fabricated in light-addressable potentiometric principle. Experimental results show that membranes imprinted by citric acid and quinine hydrochloride exhibit similar response behaviors towards four taste substances, that is citric acid > quinine hydrochloride > sodium L-glutamate > D-glucose. Membrane imprinted by sodium L-glutamate is sensitive towards quinine hydrochloride. Except for D-glucose imprinting membrane, other three membranes are inert to glucose. Combined with principal component analysis, four basic tastes can be well distinguished.

Paper Details

Date Published: 14 March 2012
PDF: 6 pages
Proc. SPIE 8329, Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011), 83290W (14 March 2012); doi: 10.1117/12.922998
Show Author Affiliations
Wenxiang Xiao, Guilin Univ. of Electronic Technology (China)
Zhencheng Chen, Guilin Univ. of Electronic Technology (China)
Xingguo Jiang, Guilin Univ. of Electronic Technology (China)
Hongtian Zhao, Guilin Univ. of Electronic Technology (China)
Fugang Chu, Guilin Univ. of Electronic Technology (China)
Hongbin Hou, Guilin Univ. of Electronic Technology (China)


Published in SPIE Proceedings Vol. 8329:
Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011)
Qingming Luo; Lihong V. Wang; Valery V. Tuchin, Editor(s)

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