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Kwon, Jin-Beom,Jeong, Hyun-Min,Kwon, Hyurk-Choon,Lee, Sang-Won,Lee, Jae-Sung,Kim, Sae-Wan,Kim, Ok-Sik,Kwon, Dae-Hyuk,Kang, Shin-Won Elsevier 2017 Sensors and actuators. B Chemical Vol.248 No.-
<P><B>Abstract</B></P> <P>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 0–2.55μA/decade, and it can detect very low concentrations (down to 1fM) 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.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The cascaded gated lateral bipolar junction transistor (C-CLBJT) that has the high transconductance was developed and used in the taste sensor. </LI> <LI> The proposed taste sensor can detect five kinds of taste solutions which are very low concentration up to 1fM. </LI> <LI> Also, the proposed taste sensor has the sensitivities of 0–2.55μA/decade according to the types of lipid sensing membranes. </LI> <LI> The measuring capability of the proposed sensor is very large, and it can detect concentrations that are lower than the 1μM limit of human’s limit. </LI> <LI> Therefore, it can satisfy human expectations and may be of great help to enterprises through the quantification of the five kinds of tastes. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>