TY - GEN
T1 - Influence of alkyl chain length of lipid in caffeine detection using taste sensor with lipid/polymer membranes
AU - Shen, H. F.
AU - Habara, M.
AU - Toko, Kiyoshi
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The taste sensor was widely used in distinguishing various taste substances. However, the taste sensor has poorer sensitivity to uncharged molecules such as caffeine, a bitter substance, than to charged taste substances. In the present study, we discussed the sensitivity of caffeine detection using a taste sensor with lipid/polymer membranes that were formed with different length of methyl group of lipid, namely, tetra-nctylammonium bromide (R8), tetrakis-(decyl)-ammonium bromide (R10), tetradodecylammonium bromide (TDAB; R12), and tetrahexadecylammonium bromide (R16). As a result, we observed that the electric responses of the lipid membranes to caffeine were associated with the length of alkyl chain of a lipid and an optimum concentration of the lipids in membranes was also observed to enhance the sensitivity of caffeine with taste sensor.
AB - The taste sensor was widely used in distinguishing various taste substances. However, the taste sensor has poorer sensitivity to uncharged molecules such as caffeine, a bitter substance, than to charged taste substances. In the present study, we discussed the sensitivity of caffeine detection using a taste sensor with lipid/polymer membranes that were formed with different length of methyl group of lipid, namely, tetra-nctylammonium bromide (R8), tetrakis-(decyl)-ammonium bromide (R10), tetradodecylammonium bromide (TDAB; R12), and tetrahexadecylammonium bromide (R16). As a result, we observed that the electric responses of the lipid membranes to caffeine were associated with the length of alkyl chain of a lipid and an optimum concentration of the lipids in membranes was also observed to enhance the sensitivity of caffeine with taste sensor.
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U2 - 10.1109/ICSENST.2008.4757186
DO - 10.1109/ICSENST.2008.4757186
M3 - Conference contribution
AN - SCOPUS:63049085710
SN - 9781424421770
T3 - Proceedings of the 3rd International Conference on Sensing Technology, ICST 2008
SP - 652
EP - 655
BT - Proceedings of the 3rd International Conference on Sensing Technology, ICST 2008
T2 - 3rd International Conference on Sensing Technology, ICST 2008
Y2 - 29 November 2008 through 2 December 2008
ER -