Low concentration, multi taste detectable taste sensor using the high transconductance of a cascoded gated lateral bipolar junction transistor

摘要

People are interested in eating good foods as a way of increasing their quality of life. Research conducted on the quantitative detection and characterization of the taste components of foods has received significant attention in recent years. However, taste sensors with higher sensitivities are needed because the expectations of the public are constantly increasing. In this study, a cascoded gated lateral bipolar junction transistor (C-GLBJT) was developed and used in taste sensor applications for detecting five taste substances. The results showed that the sensitivity of the C-GLBJT taste sensor was 0-2.55 μA/decade, and it can detect very low concentrations (down to 1 fM) of five taste solutions. The developed integrated C-GLBJT sensor could be able to provide more precise information about foods to consumers and patients who are interested in their well-being. Also, it may be of great help to advertisers and businessmen by providing them with reproducible quantitative information about their products.